Woodpecker – a curious nature

Great Mullein – Page 16 .. The 100 Day Project (2026)

August 19, 2026

If you’ve ever passed by a barren field, a somewhat rocky yet gentle slope, or a roadside waste area and noticed one or maybe many more very tall stems rising from a rosette of large fuzzy leaves, you were likely looking at Great Mullein (Verbascum thapsus), a non-native biennial plant of the Figwort family. Standing out as sentinels on landscapes across the U.S., this now-naturalized¹ species was intentionally brought to North America by early European colonists in the 1700s primarily for its medicinal properties and as a fish poison.

Two years ago while wandering down the “Trash Can” trail, just below the little rocky earthen dam stood an 8-foot tall Great Mullein. This wasn’t just any ordinary mullein though. The top 2 feet of the flower stalk was crowned with one of the most uniquely contorted, bent and folded mullein crests I’d ever seen. Magnificent!

The “Trash Can” trail Great Mullein plant (long dried) with a very large, deformed flower stalk (a fasciation) that had bent from excessive weight.

The top-heavy mass, supporting scattered flowers and many hundreds of growing seed capsules had begun to dip and sway dangerously in the light Fall breeze. While watching and wondering what cause(s) of this rare and exaggerated growth, known as a “fasciation,” the heavy stalk moaned (really!). All I knew on that morning along that trail was that the stalk’s lean would soon take the entire plant to the ground.

Very happy to find this magnificent specimen!

Rushing to the rescue, I grabbed onto the lower third of the stalk, hoping to somehow rotate the top 180°. It was at that moment, when nothing moved, I realized just how heavy that flower stalk was. Then, as my eye blinked only once, the upper 2/3rds of the plant broke and came crashing down …… fasciation and all!

Trying my best to save the flower stalk from snapping off.

Lying on the ground in a heap (mullein pieces, not me), Plan B began to materialize. Here was my chance to learn if Great Mullein “fasciates” genetically. So I collected the still-intact contorted and folded crown with its many ripened seed capsules, and proudly carried it home where it spent the upcoming winter hanging out in a 5-gallon bucket while the seeds dried, became dormant, and experienced a natural dormancy-breaking winter, preparing them for Spring planting. So certain was I that my mother plant had passed her “fasciation genes” on to her seeds, that the flowering plants of her progeny would fasciate too.

All my efforts were in vain ….. eventually the fasciated top of the flower stalk broke and crashed to the ground.

(Here’s an excerpt from my garden journal)

Spring 2025 ….. many minute seeds were scattered about our back yard.

Summer 2025 ….. 8 seeds germinated into petite 1st year rosettes

Winter 2025-2026 ….. 7 rosettes were robust enough to survive the winter

Late Spring 2026 ….. all 7 rosettes bolted, and flower stalks began growing; no sign of fasciation

Mid-Summer 2026 ….. woke one morning to find 3 had died — cause unknown (did they get too much hand watering?); only 4 flowering plants still alive; no sign of fasciation; Ladder-backed woodpeckers feasting on something inside countless seed capsules (some kind of insect?). (You can read about my mulleins’ visits from Ladder-backed Woodpeckers in my June 8, 2026 post here)

Of all the plants in our yard growing tall, with multiple flower stalks, this is the only one remaining alive at the time of this post.

Late-Summer 2026 ….. only 1 flowering plant still alive, still flowering, still plumping up seed capsules that are still feeding hungry woodpeckers (there’s so many capsules, they aren’t opening them all, so there may be seed left over for the next generation?)

Fall 2026 ……………….

Thinking back on the last two years, it seems I have a slight case of Mullein Madness, judging from my apparent obsession with the fasciation (fascinating) characteristics of Great Mullein,Verbascum thapsus! If that’s as weird as contorted flower stalks, so be it. I’ll confess to this tho….. many happy hours were not only spent watching my mullein grow, but in combing the literature and published research in search of answers to my questions while learning so much about such a remarkable plant.

Apologies in advance, but after reading the rest of this post (which is quite verbose), you too might just catch a case of Mullein Madness!

Great Mullein (Verbascum thapsus)

—aka—

greater mullein, common mullein, mullein dock, cowboy toilet paper, hig candlewick, Indian rag weed, bullock’s lungwort, Aaron’s-rod, hare’s-beard, ice-leaf feltwort, velvet dock, and flannel; woolly, velvet and blanket mullein; beggar’s, Moses’, poor man’s, Our Lady’s and old man’s blanket

Home, Sweet Home

Native to Europe, North Africa and Asia, Great Mullein is an introduced (a non-native) species in the Americas, Hawaii, Australia, New Zealand, and parts of Japan.

In the U.S., Great Mullein was imported very early in the 18th century and cultivated for its medicinal and Piscicide² properties. By 1818, it had begun spreading so much that everyone thought it was native. By 1839, the species had spread as far west as Michigan; by 1876, it was growing in California. Today, Great Mullein is common in all 50 states. In Canada, it’s common in the Maritime Provinces, southern Quebec, Ontario and British Columbia, with scattered populations in between.

Happiness Was Watching My Mullein Grow

Life cycle: Great Mullein, a biennial (requiring two growing seasons to complete its entire life cycle), needs a winter dormancy period to flower. During its first year, a seed germinating in the spring or early summer develops a showy rosette of large leaves that grows from a taproot. After overwintering, the second year’s growth begins when a solid 1-inch diameter woody stem emerges from the rosette. This single pole-like stem, that can extend 6 feet tall or more, is covered in alternately-arranged leaves along the lower third of its length, becoming completely surrounded with a dense grouping of small flower buds that randomly bloom throughout the summer. Typically, only one stem forms, but if damaged during growth, branching may occur. After flowering and seed release the flower stalk(s) dries up and remains covered in dried brown seed capsules. Dried stalks and any seeds not scattered during fall may persist into the following spring or summer.

Habitat: Great Mullein grows in a wide variety of habitats, but thrives on well-lit disturbed soils, open meadows, and arid or overgrazed rangelands. Viable seeds, that can persist in the soil for hundreds of years, rapidly germinate in the spring soon after the ground warms up. While the mullein can also grow alongside existing plants, growth of the rosettes on bare soil is four to seven times more rapid than under vegetated conditions.

Flowers: Beneath the flower’s corolla (petals) is the deeply lobed, green calyx consisting of 5 hairy, triangular-shaped sepals. The bright golden-yellow saucer-shaped corolla (0.6–1.2 in) is formed from 5 slightly unequal petal lobes that are fused at the base. Attached on top of the petals are 5 stamens of two types: three shorter upper stamens covered in yellow/whitish hairs, and two longer lower stamens that are smooth. The pistil at the center of the flower consists of a superior ovary, a single slender green style, and a two-lobed stigma. Flowering lasts up to three months from early to late summer. Flowers begin blooming from the bottom of the tall stalk (spike) and progress irregularly upward. Each flower opens for part of a day and only a few open at the same time around the stalk. They typically open before dawn and close in the afternoon.

Great Mullein flowers. The lower flowers had closed the day before.

Pollination and Pollinators: Flowers are able to self-pollinate if they haven’t been pollinated by insects during the day. Even though many insects visit the flowers, only certain bees actually get the job done (such as halictid bees (usually dark black or brown, often metallic appearing sweat bees). Birds foraging for insects, such as the white-headed and ladder-backed woodpeckers, are known to feed from the seed capsules covering the flower stalk.

Seeds: Each tiny (<0.04 in) brown Great Mullein seed is marked with longitudinal ridges. Each flower produces a small, ovoid (0.24 in) capsule full of seeds that splits open with two valves when mature. Each plant produces hundreds of capsules that contain up to 700 seeds apiece, totaling anywhere between 180,000 or 240,000 seeds/plant. Seeds germinate in spring and summer on bare soil (or very close to the soil surface) when exposed to light, at temperatures between 10 and 40°C (50 and 104°F).

The seeds are generally too small for birds to feed on, although the American goldfinch has been reported to eat them.

(See the following section for more on seeds.)

Did You Know ………

They Call it Fasciation! If you’re familiar with Great Mullein, you may have noticed some flower stalks don’t always grow straight and tall. For some reason, some tops form weird shapes that may be flat or compressed, folded or ribbon-like, bulbous or crested. These plants have grown what’s called a fasciated flower stalk, the result of a rare developmental mutation. Scientists studying these unusual growths are trying to learn what triggers fasciation, but it remains a mystery. They have, however, identified several potential vectors that may disrupt normal growth:

Roy holding the fasciated end of the “Trash Can” trail Great Mullein.

Pests and pathogens: Insect feeding, mite activity, or bacterial infections (like Rhodococcus fascians) can damage or trick the growth tip into abnormal widening, though some field tests found their presence on fasciated mullein as well as on normal plants.
Environmental stress: Severe weather shifts, frost, or chemical/herbicide exposure during early stalk development may shock the growing tip into expressing fasciation.
Physical injury: Mechanical damage to the growing tip is known to disrupt normal elongation, though specific studies carried out on some Great Mullein plants noted that physical damage actually reduced or did not trigger fascination.

And Now! Everything You Wanted to Know About Great Mullein Seeds

Did you know ….. some seeds that germinate in autumn may jeopardize the life of the plant? Rosettes getting a late start must grow to at least 6 inches in diameter or they are likely to die in winter. Regardless, all first year plants that do survive overwintering and go on to complete their life cycle, die at the end of their second year, with some exceptions. Under the best growing conditions, some individuals flower in the first year, only to die the same year. And some individuals, especially in the northern parts of the range, require a longer growing period and don’t flower until their third year. Curiously tho, three-year plants often produce fewer seeds than biennial and annual ones. While year of flowering and size are linked to the environment, most other characteristics appear to be genetic (fasciation is an example).

Did you know ….. decades-old seeds can readily sprout from bare ground, or after forest and range fires, long after Great Mullein plants have died. This ability to quickly grow or even colonize disturbed areas may provide some soil stability, but it does interfer with the natural succession of native species.

Did you know ….. seeds don’t disperse far from a Great Mullein flower stalk? This means plants rarely establish in new areas without human intervention. Seeds scatter naturally when winds or animals move the stem causing 75% of the seeds fall within 3 feet of the parent plant; 93% fall within 15 feet.

Did you know ….. seeds are in the fossil record? Oh My! Discoveries of Great Mullein seeds have been reported from several important geological areas on the British Isles, including:

Cromer Forest Bed geological formation (Early to the early Middle Pleistocene [2 to 0.5 million years ago]) located in coastal areas of the Norfolk region of England;
West Wittering in Sussex in fossil-bearing clay formed during the Eocene epoch around 46 million years ago; and the
Ipswichian interglacial layers falling within the Middle Paleolithic period 130,000 to 115,000 years ago.

Great Mullein Plays Host to Many Visitors

The Good, the Bad, and the Questionable Pests and Beneficial Insects, and Diseases

Represented by 29 different families!

Pests: The majority are western flower thrips (Frankliniella occidentalis), Lygus species such as the tarnished plant bug (L. lineolaris) and various genera from the spider mite family (Tetrantchidae). Other common insects that feed exclusively on Verbascum spp. in general or V. thapsus (Great Mullein) in particular are: mullein thrips (Haplothrips verbasci), mullein moths (Cucullia verbasci), and common stalk borer moths (Papaipema nebris).

Beneficial Insects include predators, pollinators and specialized herbivores, such as:

Honey bees were busy collecting pollen and nectar from my Great Mullein flowers. The flower stalks were a-buzz every morning and into early afternoon when the flowers were open.

Mullein plant bug (Campylomma verbasci) is hosted primarily in summer and permitted to feed lightly on the plant while actively preying on orchard aphids, mites, and thrips.
Leaf bug (Dicyphus hesperus) is hosted year-round as its primary habitat and food source in return for helping to manage greenhouse and agricultural pests like whiteflies and spider mites.
Minute pirate bug (Orius tristicolor) hosted solely as a platform to hunt thrips and other small pests on the foliage.
Predatory mites (Galendromus, Typhlodromus and Amblyseius spp.) hosted year-round on plant surfaces to hunt harmful plant-feeding mites.
Wool carder bees (Anthidium species) hosted as a casual visitor for purposes of gathering the dense, soft/woolly hairs from the plant’s leaves to line their nesting chambers.
Bumblebees, honeybees, hoverflies, butterflies hosted as frequent drop-in visitors throughout the growing season to gather abundant nectar and pollen from the flowers in return for pollination services. Special accommodations are always arranged for the following members of this visitor group known to successfully pollinate the flowers — generalist short- and long-tongued bees, including certain bumblebee species (Bombus spp.), honeybees (Apis mellifera), and assorted solitary bees (small native, wild bees).

This colorful beetle is two-spotted melyrid (dollops bipunctatus), a predatory insect on mites, aphids and other harmful insects. They were common on the huge leaves on my Great Mullein plants.

Diseases reluctantly hosted by Great Mullein include cucumber mosaic virus — the cucurbit powdery mildew (Erysiphe cichoracearum), and root rot (Phymatotricum omnivorum), along with Cercospora verbasciola; Phoma thapsi; Phyllosticta verbaciola; Heterodera maroni; Meloidogyne sp.; Mycosphaerella verbasciola; Ramularia veriabilis; Septoria verbasciola; and Oidium pyrinum. These microorganisms not only impact the health of the host, but may impact other desirable plants in the area.

A Confusingly Questionable Insect —

The Voracious Mullein Seed-Eating Weevil

A mullein seed-eating weevil adult. They were found everywhere on all the mullein plants in the yard. Very small weevils made the plant looked like it had been covered in very fine pepper!

Great Mullein was clearly tricked into hosting the mullein seed-eating weevil (Rhinusa tetra syn. Gymnaetron tetrum) by this demure, sometimes brown to nearly glossy-black beetle that promised to nibble only on leaves and a few seed capsules for the entire 45 days of its adult life. Little did mullein know that this weevil was hiding a secret. When it came to the end of her days (coinciding with flower blossoming) there was only one thing left to do … deposit all 150-200 of her fertilized eggs, two-by-two, into as many flowers as possible, she does this for over an 11-day period, and then she dies. But about 1 week following egg laying, the eggs hatch into larvae (grubs) and commence consuming most of the ~700 seeds in the growing seed capsule. When they’ve about exhausted their food supply, the larvae pupate and finally emerge as adults ~25 days later. The adults remain on the host mullein, munching uninhabited seed capsules and leaves, for 45 days until the next batch of females lays their next batch of eggs, and on it goes, until ….. when the growing season winds down and winter begins to blow in, adult weevils that haven’t completed their life cycle will tuck into a dried seed capsule and hibernate. And larvae that have entered the pupa stage of their lives will remain as such, overwintering until late spring when warmer weather triggers completion of their metamorphosis and the adults can safely emerge, ready to begin feeding on 2nd year flowering mullein.

Weevil Interlude

The mullein seed-eating weevil was accidentally introduced from Europe in 1876, to control the spread of Great Mullein. But back then and for many years following, the weevil was never intentionally used for that purpose. It happened “naturally” as the weevil spread throughout North America, making its living on Verbascum spp. it found on its journey. In more modern times, and because the weevil was never formally cleared as a released biological control agent, local land management and weed programs (such as in parts of the Pacific Northwest and Wyoming) informally recognize it as an already-established bio-agent since its larvae feed extensively on the seeds of Great Mullein. In some regions where the plant is a designated noxious weed, the weevil is viewed as a helpful naturalized helper; in other states—like Colorado—it remains unapproved for intentional release due to a lack of formal ecological impact studies.

The larvae of the mullein seed-eating weevil. By researching the Great Mullein, I learned it was these grubs the Ladder-backed woodpeckers were picking from seed capsules.

Bumper-to-Bumper Weevil Interlude

It seems that using a non-native insect to control a non-native plant is effective in significantly reducing the number of Great Mullein’s viable seeds to limit the plant’s spread. It is also a risky strategy, as many biological slip-ups have occurred in the past when a population of an introduced insect, having depleted its targeted food supply, develops an appetite for other, desirable-to-native-species plants. So far in the U.S., the mullein seed-eating weevil has only feasted on seeds of two Verbascum species—the Great Mullein (its clear favorite) and the equally-alien Moth Mullein (V. blatteria). Because the population of egg-laying adult female weevils doesn’t have enough eggs to lay in all of the hundreds and hundreds of mullein flowers, it’s probably unlikely they will run short of food in the near or far future.

To Weed, or Not To Weed

And What to Do With Unruly Great Mullein

In all areas where Great Mullein has been introduced, it’s recognized as a weedy species. Considered Invasive³ across much of the U.S., Great Mullein is a state-listed Noxious⁴weed in Colorado and Hawaii, and in several counties in Wyoming, Nebraska and Montana. In these states it aggressively crowds out native plants in dry or open ecosystems.

In other areas of the U.S., opinions on the ecological impacts of Great Mullein vary. Some land managers primarily view it as a short-lived pioneer species on heavily disturbed ground that eventually fades as native vegetation recovers; others classify it as a persistent invasive weed based on its seed longevity. Where agricultural crops are grown, impacts are generally considered minor — the ability of Great Mullein to outcompete most crops is limited because it’s shade intolerant and doesn’t survive tilling. Where it may become invasive, individuals are easy to remove by hand, even though populations are difficult to eliminate permanently.

Control Measures that Work: Mechanical methods that control the growth and/or spread of Great Mullein are the most effective. The best means is by hand pulling and hoeing, preferably followed by sowing of native plants. Regular cultivation is known to be adequate for the control of mullein. Tractor-mounted mowers or scythes can be used to trim the plants when they begin to flower. Repeated mowing prevents the flower stalk from bolting, but if mowing is discontinued then the plant will bolt and produce flowers anyhow.

Luna standing next to the rescued fasciated flower stalk, keep watch for thieves!

Not Worth the Time or Effort: All parts of the plant are covered in dense, star-shaped hairs (trichomes). Cattle and sheep avoid grazing the plant because biting into these hairs is irritating. Goats may find the plant edible, but studies are inconclusive. Use of contact herbicides is impractical since the hairs cause the liquid to roll off. Ground herbicides when taken up by the roots will damage or kill the plant, won’t kill seeds stored in the soil from previous years, and also denude the ground creating ideal conditions for growing more mullein. It would take decades of annual applications to slow, let alone prevent, new plants from growing. The use of seed-eating chickens has been proposed for mullein control, but has not been studied.

Multi-Use Mullein

Although commonly used in traditional medicine, today there are no FDA-approved drugs made from Great Mullein. Non-medicinal uses, past and present, are curiously varied.

Traditional Medicine

Dioscorides, an Ancient Greek pharmacologist and botanist, first recommended Great Mullein 2000 years ago as a folk medicine for pulmonary diseases. Leaves were smoked to attempt to treat lung ailments, a condition that in America was rapidly transmitted to Native American peoples.
The Zuni used the plant in poultices of powdered root applied to sores, rashes and skin infections. An infusion of the root was also used to treat athlete’s foot. Any preparations meant to be drunk had to be finely filtered to eliminate the irritating hairs.
Oil from the flowers was used against catarrhs (inflamed mucous membrane(s) in an airway or body cavity) colics, earaches, frostbite, eczema, and other external conditions. Topical application of various V. thapsus-based preparations was recommended to treat warts, boils, carbuncles, hemorrhoids, and chilblains. The plant has been used in an attempt to treat colds, croup, sunburn, and other skin irritations.
Great Mullein (V. thapsus) was in the United States’ 4th edition of the National Formulary from 1916 – 1936, stipulating that fluid extracts of dried leaves and flowers of the plant was approved as a pharmaceutical drug.

Otherwise Practical and Curious Uses

Roman soldiers are said to have dipped the flower stalks in grease for use as torches.
Romans extracted a yellow dye from the flowers to color women’s hair.
In some cultures, leaves have been used as wicks.
Native Americans and colonists lined their shoes with the plant’s leaves to keep out the cold.
As with many plants, Great Mullein was linked to witches, although the relationship remained undefined. At the same time, the plant was also widely believed to ward off curses and evil spirits.
As mentioned earlier, the seeds, which contain saponins, glycosides, coumarin and rotenone, are toxic to fish and have been widely used as piscicide since the plant’s introduction to the U.S. in the 1700s. Settlers threw the seeds and even the leaves into slow-moving water, allowing the chemicals to spread and stun the fish, causing them to float to the top making them easy to catch.
In modern times, Great Mullein is treated as an ornamental plant.

A first-year rosette turning into a 2nd year flowering plant.

Etymology

From the Greek word etymon, meaning

“literal meaning of a word according to its origin”

Scientific Name: Verbascum thapsus

Genus Verbascum: Originally described by Carl Linnaeus in 1753, Verbascum was derived from the classical Latin verbascum, used for the plant by Pliny the Elder (CE 23-79), Roman author, naturalist, scientist, etc. However, the word “verbascum” was widely believed to be and accepted as a corruption of “barbascum,” from “barba” meaning “beard.” The genus name Verbascum, back then (as it does today), refers to the dense, hairy coating on the leaves and the bearded appearance of the plant’s stamens.

Species (specific epithet) thapsus: First used by Theophrastus (BC 371-287), Ancient Greek philosopher and naturalist, for an unspecified herb from the Ancient Greek settlement of Thapsos, near modern city of Syracuse, Sicily ….. OR ….. it may have come from the ancient Tunisian city of Thapsus.

A first-year rosette turning into a 2nd year flowering plant. Would these huge leaves make excellent shoe liners!?

Common Name: Great Mullein

“Great” was used in the plant’s common name to distinguish it from other more diminutive plants of the same genus Verbascum. “Great” refers to the plant’s tall stature.

“Mullein” evolved from Middle English “moleyne,” by way of the Anglo-French word “moleine,” which came from the Latin root “mollis,” meaning “soft.”

…………………………………………………………………………………………………

Wake up Now! Unless you’ve caught a case of Mullein Madness Fever!

Regardless, hope you found this interesting!

(I promise to write a shorter post next time)

As always, thanks for stopping by!

¹ Naturalized – a non-native plant species brought from other regions that now reproduces and spreads on its own without human help, but doesn’t aggressively overrun native habitats.

² Piscicide – a chemical substance that’s poisonous to fish. Piscicides are primarily used to eliminate a dominant species of fish in a body of water, done as the first step in attempting to populate the water body with a different fish species. They are also used to combat parasitic and invasive species of fish.

³ Invasive – a non-native species introduced to a new-to-it ecosystem where it spreads rapidly, outcompetes native species, and causes economic or environmental harm. Because it lacks natural predators or diseases in its new home, it easily takes over natural habitats, yards, farms, etc.

⁴ Noxious – any plant legally designated by a government agency as harmful to agriculture, public health, wildlife, or property. These plants grow aggressively, spread fast, and lack natural controls. While many are non-native invasive species, some native plants can also be classified as noxious if they cause severe damage.

References

cabidigitallibrary.org

discoveringfossils.co.uk

extension.oregonstate.edu

southwestdesertflora.com

starrenvironmental.com

uwm.edu

wikipedia.org

Ladder-backed Woodpecker – Page 15 .. The 100 Day Project (2026)

August 10, 2026

Ladder-backed Woodpecker (Dryobates scalaris)

aka Cactus Woodpecker (Dryobates scalaris cactophilus)

Such dashing little birds, Ladder-backed Woodpeckers are fairly common along the trails of the Albuquerque foothills, easily spotted as they fly from one prickly cholla to another. They feed on insects living under the leather-like hide of the cactus’ trunks, somehow avoiding getting speared by thorns. Ladder-backed Woodpeckers are also at home among our neighborhood stands of pinyon pine and oak. For several years I’ve heard their high-pitched “Peek” call as they fly amongst the trees, but hadn’t caught a glimpse of one to confirm a sighting ….. until this summer!

While walking into the back yard one day I came to an abrupt stop at the gate. A mere 20 feet to my right came a “Peek” call —- and then another “Peek.” Turning only my head, ever so slowly, in the direction of that familiar call, I saw a male Ladder-backed Woodpecker creeping up and around the 5 foot tall vertical flower stalk of a mullein plant (Verbascum thapsus) growing along the fence line. And not 1 foot away from him was his partner busy working her way up another mullein flower stalk. They were both so intent on drilling into bug-filled seed pods, they seemed not to notice me! Here was my Ladder-backed Woodpecker confirmation!

After watching their activity for 10 minutes or so, I tip-toed away to fetch Roy and my camera, confident the birds had enough seed pods to keep them busy. Upon our return, they were still excitedly feasting and calling to each other, and I was able to capture a few dozen photos.

Like clockwork, the pair returned every day for a week! It was such a joy to watch them both ….. mostly they got along — like a newlywed couple. But there were times ….. like when one or the other of them dared to feed from the same mullein flower stalk, at the same time! Quite a squabble took place; both birds shouting rapid-fire “PEEK – PEEK” with wings wildly flapping all while they hitched themselves up and around the stalk to the very tip! Peace returned by default when the first bird reaching the top ran out of flower stalk, and surrendered to their mate by flying away to another mullein. Because there were only a few mullein plants with a supply of delicious bugs, competition and arguments between the two birds was frequent. But I never knew who the winner would be until each round was won.

A Bit About Looks

Ladder-backed Woodpeckers have a square head, a small but straight chisel-like bill, short neck, and stiff tail that they lean against for support. Both sexes are 6.3 – 7.1 inches long and have a 13 inch wingspan. Color-wise, they are black-and-white above arranged in neat stripes like ladder rungs on their backs, and a more checkered pattern on their wings. Underparts are buffy white or grayish, stippled with black. Their buffy white face is broken by black lines that extend from the bill and eye and join at the neck. Males have mostly red crowns from their eyes to back of the head; females have blackish crowns with a buffy patch in front of the eyes.

A female Ladder-backed probing a mullein flower bud for insects.

A Bit About Behaviors

Usually staying hidden by foliage, Ladder-backed Woodpeckers are readily detected by their “Peek” calls or rapid drumming on trees while searching for food. As they move about from tree-to-tree, you’ll notice their short duration flight pattern is rapid and undulating. Breeding pairs of this woodpecker form or re-form in winter or early spring.

A Bit About Foraging, Diet and Related Behaviors

Like most woodpecker species, the Ladder-backed male typically forages on tree branches and trunks; females forage on smaller plants and bushes. They find insects by pecking, picking, probing, prying, gleaning, flicking, or tapping their bill at bark or other spots that might be hiding insects. Ladder-backed Woodpeckers can be quite acrobatic, twisting and turning, balancing with the wings open, and hanging upside down in pursuit of food as they hitch and hop upwards on a tree or other plant. Their ability to prop themselves in any position on just about any plant to feed is due to their stiff tails and agile feet.

A male Ladder-backed drilling furiously into a mullein flower bud. The birds make lasting holes in the buds as they open the sepals in search of insects.

Although Ladder-backed Woodpeckers eat mostly insect larvae, they do eat some adult insects. Prey include wood-boring beetles, leaf worms, ants, caterpillars, and true bugs (hemipterans). Occasionally they will eat cactus fruit.

Unlike larger woodpecker species, the Ladder-backed rarely digs deep into the wood, they do not cache (store) food or capture flying insects in midair. They rarely feed on the ground.

A Bit About Range and Habitat

Ladder-backed Woodpeckers are permanent residents (not migratory) within their range which includes: central and eastern parts of NM through extreme southeast CO; southern, western and northwestern AZ; extreme eastern and northeastern tip of the TX panhandle; extreme southeast CA. Ladder-backed Woodpeckers are found throughout most of Mexico and in parts of Central America.

Typically, these woodpeckers live in very dry habitats such as deserts, desert scrub, thorn forest, and pinyon-juniper woodlands from the lowest elevations up to about 7,600 feet.

A Tiny Bit of Fun Facts

Like most woodpeckers, the Ladder-backed have their four toes arranged in an X-pattern, with two set forward and two backward (known as “zygodactyl”). This adaptation allows them to cling to vertical surfaces and even upside down on horizontal surfaces more easily and firmly than perching birds (which have three toes set forward and one backward).

A male Ladder-backed showing how his X-shaped or Zygodactyl toe arrangement and stiff tail allows him to cling and prop against this vertical mullein flower stalk.

The oldest known Ladder-backed Woodpecker was a male who was at least 4 years, 6 months old when caught and released in Texas.

A Bit About Common Names

The “Ladder-backed” name comes from the pattern of black-and-white markings climbing the bird’s back in neat stripes like ladder rungs, all the way up to the base of their heads.

The “Cactus Woodpecker” (D. s. cactophilus) is an old name for a subspecies of the Ladder-backed Woodpecker that inhabits the southwestern United States and adjacent Mexico. Calling them “Cactus Woodpecker” was fitting as they frequently forage on and nest in various species of cacti.

A Bit About Scientific Names – Etymology

Dryobates scalaris and Dryobates scalaris cactophilus

The genus Dryobates, named by the German naturalist Friedrich Boise in 1826, is from the Greek compound word δρυο-βάτης : ‘woodland walker’; from δρυο (-drus) meaning “woodland,” and βάτης (-bátēs) meaning “walker.”

The species scalaris comes from Latin, meaning “of or pertaining to a ladder” or “a flight of steps.”

The subspecies cactophilus was likely a slight misspelling of cactophily (or cactophile/cactophilic). Breaking down cactophily (cacto– and –phily), you have something with an affinity for or specialization in cacti. More precisely, cacto- is from the Neo-Latin noun for cactus, which derived originally from the Ancient Greek kaktos, a term used by Theophrastus to describe a kind of thorny thistle. And -phily is derived from the Ancient Greek suffix -philia meaning love, fondness, affinity, or a tendency toward something.

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Hope you found this interesting!

I’d love to know what woodpeckers visit your neighborhood.

As always, thanks for stopping by!

References

allaboutbirds.org

audubon.org

iNaturalist.org

Under Siege!

A Battle of Wits

Conflict of Interest

November 24, 2025

Were you ever so challenged by something so clever, while at the same time so frustrated with something so beautiful? No, no, wait….. that question may be more complicated than need be. Let me put it this way ……

Were you ever at your wit’s end finding a solution to a seemingly simple problem that you thought was obviously and repeatedly staring you right in the face?

My reply? Yes!

It’s All About the Genes

Meet the Northern Flicker (Colaptes auratus) … or more specifically, the Western red-shafted flicker (C. auratus ssp. cafer)*, a gorgeously flamboyant and noisy member of the Woodpecker family, that’s common throughout its western range.** And as woodpeckers do so well, they peck and peck and hammer and drill with the determination and force of a jackhammer*** on nearly any vertical (preferably wooden) surface. They’re single-minded, from start to finish, when it comes to creating a cozy nesting or roosting cavity, whether in a tree trunk or into your home. (More about that in a bit.)

Flicker ID – 101

How do you know a Flicker has laid claim to your place? Well, he’s a big, heavy-bodied bird, and when flying overhead, your first thought might be “Crow!” At 12-14” long, with a wingspan of 18”-21”, the size is right. But as he flashes a large showy white rump patch bookended by reddish-orange underwings, you realize he’s not black. Anything but! As his flight slows and dips you notice his brown back is marked with narrow black bars. In preparation for landing, with wings open wide, he vertically aligns his body and feet with the wall, exposing a pale gray belly with bold black spots and a chest-wide black patch. Two strong clawed-toes up, two down (zygodactyl), and a stiff wedge-shaped tail adjusted as a brace, he taps out a few test spots, drawing your attention to his long and heavy bill, on a slate gray head broken by a buff-brown crown, a bright red whisker (male), and light gray cheeks.

Male Western red-shafted flicker in flight. Note white rump patch (unsplash.com)

On a crisp cool Autumn morning, as you watch in horror ……

Before you can declare, “It’s a Male Flicker!” ……

This bigger-than-life bird has landed, tested, and pecked away at his chosen spot 170 times in 10 seconds! He’s created an entry hole about 3” wide, right through the stucco and foam sub layer. This determined Flicker knows winter is coming and he intends to drill into our home, making a cozy roosting cavity in which to hunker down until Spring!

Oh no, No, NO!

We love Flickers and have no wish to harm this beautiful bird.**** But he’s already caused enough damage (23 feet high on the wall) that needs immediate repair. So I clap my hands and holler loudly (something unintelligible), and off he flys to a nearby snag to see how serious my noise-making was.

That’s the story of Flicker hole #1

Oh Not Again, and Again, and Again!

Since early November, our resident Flicker (I call him Jack), has continued to return many times, usually between sunrise and 10am. Sometimes he’ll make a fly-by before sunset. Often his quiet arrival escapes our notice; either we’ve been running errands, we’re out hiking with Luna, or enjoying a short roadtrip. These are the times he’s been able to drill six 3”-wide holes on the initial wall, and another 3”x6” hole just around the corner which was so deep, he almost penetrated the interior of Roy’s woodshop! This gives a whole new meaning to the term “Airbnb!”

After a few weeks up and down our fully-extended extension ladder to make a 2-step/2-day repair job/hole, we were making ZERO headway. Jack, unable to resist the need to drill him a roost cavity, was always one hole ahead of us. And because he didn’t hesitate to redrill newly repaired holes, was there something we were doing wrong?

All Flicker painting are larger than life, because that’s how they seemed to me!

It’s an Education in Biology and Patience

So we learned to listen for his noisy “kerrreee” scream-like call announcing his presence from one of Jack’s many favored perches around the house. Unless we missed it, his territorial call would put us on high alert, ready for action. We also listened for his series of warm-up test pecks that usually sounded inside the house. This “alarm” would catapult one or both of us from a comfy chair and run outside yelling and clapping our hands.

Between listening, running, clapping and yelling (and wondering what the neighbors might be thinking), I discovered a few interesting things on-line…..

Woodpeckers can’t resist drilling holes in synthetic stucco. This product provides the perfect surface for woodpeckers to hammer. When they begin tap pecking, it creates a hollow sound because the synthetic stucco includes a foam layer. The woodpeckers peck through the hard outer surface into the foam where it is easier to create a larger cavity to nest.

#1 …. Our entire home happens to be covered with synthetic stucco! While this might explain Jack’s insatiable desire to drill his roosting cavity into our home and not into one of the surrounding hardwood piñon pines, we’re not going to replace the stucco.

Basil, mint, cinnamon and/or lavender are suggested as natural, non-toxic deterrents for woodpeckers, who dislike strong aromas. The scent of basil, in particular, can be overwhelming and confusing to woodpeckers. Crushing one or a mix of these herbs with adding a bit of water, creates a green slurry that can be filtered and applied with a spray bottle to the affected area(s).

#2 …. This idea was worth a try, especially since there’s still have basil and mint growing in the garden. After collecting several handfuls of each, I popped the mix into the food processor with a bit of water and flipped the on switch. Gathering the resulting slurry, I filtered it through paper towels and collected the liquid for a spray bottle. That was several weeks ago, and with every hole repair, Roy’s been thoroughly soaking first the patch job then follow-up stucco coating with the basil/mint spray. It’s hard to know if it’s actually working, but the initial drilling sites haven’t been redrilled in the past week. It could also be that Jack is gone; pushed out with one of our heavy rainstorms. Or he’s begun drilling more recent holes over the RV garage door. With each repair, Roy continues to spray the basil/mint mix.

The Federal Migratory Bird Treaty Act*** provides protection for Flickers (and all woodpeckers), making it illegal to harm or kill them. But when warranted, migratory birds can be killed under a depredation permit issued by the Law Enforcement Division of the USDI-Fish and Wildlife Service (USFWS). Authorization by the relevant state wildlife agency also may be required before lethal control methods are initiated. Sound justification must be present for the issuance of depredation permits.

#3 …. Applying for a depredation permit may be our last resort, if Jack and his cohorts threaten to turn our brand new home into Swiss cheese.

AGAIN!

That’s the story, almost. This clear Conflict of Interest; an obvious Battle of Wits, continues. Just yesterday, one of the holes Roy patched above the RV garage door was redrilled this morning!

Oh Good Grief!

It’s already been repatched and resprayed, and while writing this story in my studio with window cracked and a clear view of the patched hole, I’m sure to hear and see that gorgeously determined Flicker if he returns to jackhammer away, once again, into a side of our home!

I’d love to know if you or anyone you know has a proven solution to this natural dilemma. Meanwhile …..

Thanks for stopping by, and Happy Thanksgiving!

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*Northern Flickers are divided into 2 subspecies, the Western red-shafted flicker (C. auratus ssp. cafer) and the Eastern yellow-shafted Flicker (C. auratus ssp. auratus). The red-shafted subspecies is found throughout Mexico, western and west-central U.S. (where it is common all year long), and British Columbia, Canada. The closely related yellow-shafted subspecies, which is highly migratory, is found in eastern and east-central U.S., the Canadian provinces and Territories (except B.C.), and far north into AK.

**Where the range for both subspecies overlaps (in the ‘lower 48’), a lot of hybridization occurs. It’s common to see a red-shafted flicker with more orange feather shafts and/or shades of yellow-orange on the underside of their flight feathers. The same holds true for the yellow-shafted hybrid. Otherwise, appearances differ notably between both subspecies of the Northern Flicker, primarily where the malar (mustache), nape pattern (back of the head below the crown), face color, and tail and flight feathers are concerned. See the table below for non-hybrid subspecies characteristics. For hybrids, any color and pattern variation(s) and combination(s) you can imagine have probably been found!

Northern Flicker subspecies	Red-shafted	Yellow-shafted
Face color	Gray	Buffy to warm, light brown
Malar color	Male: red Female: brown	Male: black Female: brown
Nape color & pattern	Gray, unpatterned	Male: Red crescent on gray Female: gray, unpatterned
Feather shaft/under flight feathers	Pinkish to reddish to red	Yellow

***A woodpecker can peck wood 17x/second, and from 8,000-12,000x/day! Really! And they can drill into wood at a force 10x greater than a football tackle that would cause a concussion. On the November 17, 2025 episode of the Science Friday (SciFri) podcast, biologist Nick Antonson stated that woodpeckers can peck 20-30x their body weight. Now that’s amazing for a Flicker that weighs about 6 ounces!

****Because we had no desire to harm the Flicker(s) drilling into our new home, even when we reached our point of extreme frustration, we wanted to ensure our deterrent efforts aligned with wildlife regulations; especially with the Federal Migratory Bird Treaty Act (Act). Flickers (and all woodpeckers) are considered a migratory non-game bird species, and protected under the Act. It’s illegal, punishable by fine and/or imprisonment, to harm or kill them.

Male Western red-shafted woodpecker with his tail braced against the branch(bird pixels.com)

Williamson’s Sapsucker …………. A Life-List Species!

March 19, 2024

There are a number of different woodpecker and closely related species (sapsuckers and flickers) that frequent our Piñon-Juniper woodlands in the East Mountains of central New Mexico. These include the downy, hairy, Lewis’s, red-naped, Northern flicker, and Williamson’s sapsucker. They are always such a joy to observe, unless they’re drilling a hole in the side of the house. Their stiff tails allow them to ‘walk’ up and down tree trunks and other vertical surfaces that house insects or exude sticky sap. Their sharp bills are ideal for creating nest holes and sapwells in tree trunks. Their sharp calls, drumming, and stiff-winged flight make them easy to recognize as a member of the woodpecker group of birds.

Until mid-March we’ve never seen a Williamson’s sapsucker. Then one morning Roy was trying to catch a glimpse of a strange woodpecker on one of our old growth piñon pines. Immediately recognizing the markings of this bird were unlike any we’ve seen before, he excitedly fetched me from my studio to have a look.

Sure enough! Realizing this was likely a life list sighting for us both, the markings looked just like those illustrated in our numerous field guides. Indubitably, dear Watson! This was a Williamson’s Sapsucker (Sphyrapicus thyroideus) and he was treating us to a visit. We watched him (definitely a male, as females look completely different than the males, which is unusual for woodpecker species) working his way up and down the tree trunk. As he walked and hopped up and down the tree, he would circle the trunk and pause to lick up actively flowing tree sap from rows and rows of sapwells! Why had we never noticed so many sapwells on this tree before?
Did this or other Williamson’s sapsuckers drill these shallow sapwells? Maybe another woodpecker species created them and the Williamson’s was stealing the nutritious sap? Are these new sapwells or have woodpeckers been drilling this tree for many years? Countless questions, but this handsome fellow wasn’t giving up his secrets. So we enjoyed his antics for about 30 minutes until he flew off, maybe to another piñon to lap its sap?

The next day, as we were about to pull into the garage, we spotted the Williamson’s again …… again working the sapwells up and down the piñon tree. We sat in the car and watched him while mulling over new questions, like “isn’t this the same time he was here yesterday?” “Why yes!” We closely observed his feeding pattern, beginning at about 5 feet above the ground, walking and hopping up the tree while circling the trunk, and when he reached the needled branches about 25 feet high, he would make a diving flight back down to the 5 foot height and again work his way up. This went on repeatedly for about 5 times before he flew away. Hmmmm! Why did he stop when he did? Had he licked up all the available sap for the day, and had to wait until the sap began flowing again? (I showed up later to see if he returned ….. he didn’t. Maybe my timing was off? Maybe the sap flow still wasn’t worth his trip?).Day 3, and same time/same place. This hungry bird was back lapping sap! Same up and down behaviors; same departure time.

Day 3, and same time/same place. This hungry bird was back lapping sap! Same up and down behaviors; same departure time.

Day 4, ditto

Day 5, ditto

Day 6 ……. We arrived at the same mid-morning time, and waited. And waited. And waited. The Williamson’s sapsucker was a no show. And we haven’t seen him since.

Was he only migrating through, just long enough to stock up on high energy meals? Apparently this species is widespread and fairly common throughout the Rocky Mountain West, but their breeding range begins just north of us and extends into Canada. However, we are well within the Williamson’s sapsucker’s winter range. Hope he returns again next year!

Meanwhile we’ll be watching that old growth piñon to see if the sapwells draw in other hungry birds!

Now, a few fun facts about the Williamson’s sapsucker and sapsuckers in general.

While the male Williamson’s sapsucker is silky black with a cherry-red throat, a brilliant lemon-yellow belly and bright white wing patches, the female looks totally different. This is very unusual for birds in the woodpecker group. The female has a mousy brown head, banded back and small patches of black and yellow on the belly.

The difference is so striking between the male and female, they were originally thought to be different species entirely. It wasn’t until 1873 that ornithologists realized they were the same species. Naturalist Henry Henshaw located a pair at their nest in Colorado and published his observations, thus putting an end to the confusion.

Sapsuckers get their name from their habit of drilling rows of shallow holes in tree bark. The birds come back to these holes to lick the sap that flows from these holes and to eat insects that have become caught in the sticky residue.

Early ornithologists in the West reported seeing Williamson’s Sapsuckers at sapwells in aspen trees; however, in the past 100 years, observers have seen their sapwells only in conifers, never in deciduous trees. The early reports might have been of Williamson’s stealing sap from wells made by Red-naped Sapsuckers.

Here’s a few progress shots I remembered to capture while creating the Williamson’s clinging to the tree

Earliest coloring stages …. Laying down base colors to build up to the Williamson’s silky black back

Adding more base colors, sapwell and tree bark furrowing details

Close to final image. The black was achieved by using purples, browns, blues and greens to achieve the iridescence of his black coloring.

A Festive Anniversary Week in the Sonoran Desert. Part 7: Snowbirds

December 11-17, 2022

The much anticipated finale, Snowbirds, and wrap-up to a grand anniversary week celebration in and around Tucson, AZ, follows!

Despite an unexpected snow the evening of our arrival, we never seemed to slow down, taking in as many sights and good eats as humanly possible. …… Open the full post for a recap of our week, and a bit about some of the birds we found while traveling around.

A Festive Anniversary Week in the Sonoran Desert. Part 5: Saguaro National Park – East, Rincon Mountains Unit; All saguaro, all the time!

(December 11-17, 2022)

December 14, 2022

We certainly enjoyed visiting Saguaro NP – East. Most of the Rincon Mountains Unit is wilderness and only accessible on foot; no dogs allowed. But the cactus Forest Loop Drive was scenic, with views of the Rincon Mountains to the East, and saguaro everywhere!

Really couldn’t seem to get enough saguaro! The highlights of this day were finding another crested saguaro while hiking an area Luna could enjoy, standing next to some shoulder high fishhook barrel cactus, and enjoying the Phainopeplas with their shimmery black feathers.

If you’re up for more saguaro botany, read on. This post will be dedicated to this largest of all North American cactus, Carnegiea gigantea. (Beware. This post is long, so settle in!)