{"id":15114,"date":"2014-06-01T06:25:50","date_gmt":"2014-06-01T12:25:50","guid":{"rendered":"http:\/\/onthewingphotography.com\/wings\/?p=15114"},"modified":"2026-03-20T12:18:16","modified_gmt":"2026-03-20T17:18:16","slug":"wonderful-lifers-williamsons-sapsuckers-at-their-nesting-tree","status":"publish","type":"post","link":"https:\/\/www.onthewingphotography.com\/wings\/2014\/06\/01\/wonderful-lifers-williamsons-sapsuckers-at-their-nesting-tree\/","title":{"rendered":"Wonderful Lifers – Williamson’s Sapsuckers at their nesting tree"},"content":{"rendered":"

\"MaleMale Williamson’s Sapsucker just after his first appearance<\/span><\/p>\n

Hi there, I am back from another amazing journey and as many of us say “you just never know what you might see” when you are out in nature and this journey produced a few lifers. I count birds as lifers when I photograph them, no matter how cruddy the image might be.<\/p>\n

This trip was split between photographing in southwestern Montana and eastern Idaho. To start the trip I slammed my knee into a door as I was closing it which happened before I even left home. So for the first two days I had a gimpy left leg but that didn’t stop me.<\/p>\n

Back to the birds…<\/p>\n

After I spotted and pointed out some wrens (more on them soon) darting in and out of cavities in an aspen tree in a sheltered location. Using some aspen saplings as a blind I started to photograph the wrens.<\/p>\n

Before long another larger, strikingly colored bird flew in and started climbing up the tree. Seriously I could barely contain myself because in my viewfinder was a gorgeous red, yellow and black colored male Williamson’s Sapsucker that I identified. When he first landed he was checking out a Tree Swallow that was poking its head into one of the many nesting cavities in the aspen and the Tree Swallow soon took off.<\/p>\n

Williamson’s Sapsuckers at their nesting tree were lifers for me!<\/p>\n

\"NestingNesting tree – Aspen with carvings on it<\/span><\/p>\n

Don’t you just know that the favorite place for this male to land was where someone carved their initials and the year into the bark of the nesting tree?<\/p>\n

\"MaleMale Williamson’s Sapsucker on the nesting tree<\/span><\/p>\n

Like most woodpeckers and sapsuckers this handsome bird spent time hiding behind the tree but when he came into view he was dazzling. Maybe even stupefyingly knock-your-socks-off drop-dead gorgeous.<\/p>\n

Williamson’s Sapsuckers are a secretive species of the Intermountain West and breed in coniferous forests. They have specific habitat needs because of their dependence on\u00a0sap and phloem. Williamson’s Sapsuckers eat ants that crawl up trees and they also suck sap from the wells they drill in the trees.<\/p>\n

\"Williamson'sWilliamson’s Sapsucker male<\/span><\/p>\n

Unlike\u00a0other woodpeckers and sapsuckers Williamson’s Sapsucker exhibit remarkable sexual differences in plumage and at first were\u00a0 thought to be two separate species.<\/p>\n

John Cassin<\/a><\/span>, a noted ornithologist and taxonomist first described this species as Picus thyroideus<\/em> in 1851 from two female specimens collected by John G. Bell<\/a><\/span> in California and by 1856 the common name was Black-breasted Woodpecker.<\/p>\n

In 1855 John Strong Newberry<\/a><\/span> collected the first male specimen in southern Oregon and named it Williamson’s Woodpecker. Spencer Fullerton Baird<\/span><\/a><\/span> renamed the genus Sphyrapicus<\/em>\u00a0in 1857. Two other common names during this time period were Baird\u2019s Brown-headed Woodpecker and Cooper\u2019s Round-headed Woodpecker.<\/p>\n

In 1873 Henry Wetherbee Henshaw<\/a><\/span> ended the confusion between the two “species” when he\u00a0observed a mated pair at a nest in Colorado and verified that the two were a single species. <\/span><\/p>\n

By 1886 the name sapsucker was applied in the first checklist of American Ornithologists\u2019 Union and\u00a0the common name Williamson was recorded. This species was named after Robert Strong Williamson<\/span><\/a><\/span> who was with the expedition with John Strong Newberry when the first male specimen was collected.<\/p>\n

What a joy is must have been for early naturalists and ornithologists to explore this country\u00a0to find, document and name\u00a0new birds.<\/p>\n

\"Williamson's<\/span><\/a>Williamson’s Sapsucker male by carvings in the Aspen<\/span><\/p>\n

Early studies indicated that only the male excavated the nesting cavity but more recent studies show the females work at excavation too. Quite often the same nesting tree will be used in other nesting seasons and the trees will have several nesting cavities that could be used by secondary cavity nesters including the wrens I mentioned earlier which is why I<\/strong> was drawn to this tree. If I hadn’t paid attention to the wrens I would not have discovered these sapsuckers nesting in the same tree.<\/p>\n

\"AspenAspen nesting cavity tree<\/span><\/p>\n

This image shows the nesting tree with several cavities and one that has not been completely excavated (second from the top). Williamson’s Sapsuckers prefer live trees that show some sign of fungal infection in the heart wood which makes it easier for them to excavate the nesting cavity. Perhaps the carvings in this tree introduced the fungal infection to this nesting tree? Just guessing.<\/p>\n

\"MaleMale Williamson’s Sapsucker at the nesting cavity<\/span><\/p>\n

The male spent all of the time I observed and photographed him the first day outside of the nesting cavity. It was a very busy tree that day with the sapsucker, wrens, Tree Swallows, Mountain Chickadees, Red-breasted Nuthatches and Yellow-rumped Warblers flying in and flitting around. Before flying into the nesting tree I noticed that the sapsucker would give a squeal call.<\/p>\n

\"MaleMale Williamson’s Sapsucker in the nesting cavity<\/span><\/p>\n

I went back to the nesting tree for a second morning still using the vehicle and aspen saplings as blinds and on the second morning the male Williamson’s Sapsucker entered the nesting cavity and because it was so quiet in the nesting location I could hear him inside the cavity excavating.<\/p>\n

\"FemaleFemale Williamson’s Sapsucker just after she flew in<\/span><\/p>\n

Also on the second day; much to my delight, a female Williamson’s Sapsucker flew in and landed on the nesting tree. Notice how different her plumage is compared to the male? It is no wonder early ornithologists thought they were two different species. She does have some of the yellow on her belly that the male also shows.<\/p>\n

Also notice how she landed right where the carvings are in the aspen?<\/p>\n

\"Williamson'sWilliamson’s Sapsucker female looking into the nesting cavity<\/span><\/p>\n

The female checked out the nesting cavity while the male was inside excavating.<\/p>\n

\"FemaleFemale Williamson’s Sapsucker checking out the nesting cavity<\/span><\/p>\n

And she gave me some great views of her and her plumage while she clung to the outside of the nesting cavity. I would have loved being able to get both the male and female in the same image but they never appeared together.<\/p>\n

I stopped because I spotted the wrens that were busy bringing twigs to the nesting tree and because I stopped I got two wonderful lifers in the same location. It pays to be observant and patient.<\/p>\n

I also think I need to spend more time in the woods. You can’t photograph woodland birds without being in those trees!<\/p>\n

Life is<\/em> good.<\/p>\n

Mia<\/p>\n

Click here<\/span><\/a> to see more of my Williamson\u2019s Sapsucker photos plus facts and information about this species.<\/p>\n","protected":false},"excerpt":{"rendered":"

I could barely contain myself because in my viewfinder was a gorgeous red, yellow and black colored male Williamson’s Sapsucker.<\/p>\n","protected":false},"author":1,"featured_media":15112,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[27,2578,2244,2575],"tags":[4004,9430,1919,6810,9440,5136,4070,5370,531,4062,3969,4069,4075,2580,2579,8300,9439,5847,3094,9438,5781,2577,9441,4427,2576,9442,4777,2146],"class_list":["post-15114","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-avian","category-clark-county","category-idaho","category-williamsons-sapsuckers","tag-adult","tag-ants","tag-aspen","tag-blind","tag-coniferous-forests","tag-excavation","tag-female","tag-forest","tag-lifer","tag-male","tag-montana","tag-mountains","tag-nest","tag-nesting-cavity","tag-nesting-tree","tag-photographing","tag-sap-wells","tag-sapsucker","tag-sapsuckers","tag-secretive-species","tag-sexual-differences","tag-sphyrapicus-thyroideus","tag-squeal-call","tag-tree","tag-williamsons-sapsucker","tag-woodland-birds","tag-woodpecker","tag-woodpeckers"],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/www.onthewingphotography.com\/wings\/wp-content\/uploads\/2014\/05\/williamsons-sapsucker-male-adult-mia-mcpherson-1129.jpg","jetpack_shortlink":"https:\/\/wp.me\/p11Mom-3VM","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":114509,"url":"https:\/\/www.onthewingphotography.com\/wings\/2023\/07\/19\/3000-daily-posts-in-a-row-milestone\/","url_meta":{"origin":15114,"position":0},"title":"3000 Daily Posts In A Row Milestone","author":"Mia McPherson","date":"July 19, 2023","format":false,"excerpt":"Today is a milestone day for me. 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McPherson","date":"July 6, 2014","format":false,"excerpt":"It was a Sapsuckery trip to Montana and Idaho last week, with Red-naped and Williamson's Sapsuckers at their nesting cavities","rel":"","context":"In "Birds"","block_context":{"text":"Birds","link":"https:\/\/www.onthewingphotography.com\/wings\/category\/avian\/"},"img":{"alt_text":"Red-naped Sapsucker male, Targhee National Forest, Clark County, Idaho","src":"https:\/\/i0.wp.com\/www.onthewingphotography.com\/wings\/wp-content\/uploads\/2025\/05\/red-naped-sapsucker-male-adult-mia-mcpherson-7265.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.onthewingphotography.com\/wings\/wp-content\/uploads\/2025\/05\/red-naped-sapsucker-male-adult-mia-mcpherson-7265.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.onthewingphotography.com\/wings\/wp-content\/uploads\/2025\/05\/red-naped-sapsucker-male-adult-mia-mcpherson-7265.jpg?resize=525%2C300&ssl=1 1.5x, 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