The Institute for Bird Populations
@instbirdpop.bsky.social
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Since 1989, The Institute for Bird Populations has enabled science-based conservation of species and habitats by studying the abundance, demography, and ecology of birds and other wildlife.
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instbirdpop.bsky.social
Did you ask for a bird fact? No, but you're getting one whether you like it or not. 🪶
Photo of a Seaside Sparrow standing on some dead grass in a saltmarsh by Big Dipper 2/Flickr. The bird has one wing raised, showing off the yellow feathers on its wrist. Text on the graphic says: Unsolicited Bird Fact- This Seaside Sparrow may be flipping you the bird. Or it may be flirting with you- it's hard to know from a photo with no context. This species raises one or both wings and shows off its yellow "wrists" as an aggressive gesture towards intruders on its territory, and also as part of a courtship display. If the wing raise is accompanied by a "whinny" call, it's meant as a compliment
instbirdpop.bsky.social
Rota in the Commonwealth of the Northern Mariana Islands
instbirdpop.bsky.social
🪶🌎🧪 Its resighting highlights the critical importance of bird banding and monitoring efforts, which provide valuable data on migratory pathways, habitat use, and conservation needs. (4/4)
instbirdpop.bsky.social
🪶🌎🧪 Whimbrels are long-distance migrants, traveling thousands of miles between breeding grounds in Siberia and wintering habitats in Australasia twice every year. (3/4)
instbirdpop.bsky.social
🪶🌎🧪 The bird had a metal band and two leg flags, one marked with “T0.” They shared photos in an online bird resighting group, and soon heard back from Jun Hosoya—who originally banded the Whimbrel in Torinoumi, Miyagi Prefecture, Japan, on May 5th, 2024—nearly 1,700 miles away! (2/4)
Photo by Jun Hosoya of a feshly banded Whimbrel being held in a bander's hand. The photo is dated May 5, 024
instbirdpop.bsky.social
🪶🌎🧪 On September 28th, Rota TMAPS banders Greta Walser and Jason Talbott observed a color-banded Whimbrel on the lawn of a church directly across from their home. (1/4)
Photo by Jason Talbot of a Whimbrel walking across a grassy lawn on the island of Rota in the Commonwealth of the Northern Mariana Islands. The bird has blue and white flags on on leg
instbirdpop.bsky.social
🪶 The answer to this week's #BitOBird quiz is....Redpoll! Congrats to our winner @waxwing.bsky.social ! Don't worry if you missed it this week, we'll post another quiz next Monday at 11am ET/10am CT/9am MT/8am PT.
Zoomed-in photo of a Redpoll in a snowy shrub. Photo by Jerry Hiam
Reposted by The Institute for Bird Populations
samillingworth.com
🦅 Bearded vultures as time capsules

Researchers found centuries-old artifacts and bones in ancient bearded vulture nests in Spain, revealing how these birds preserve ecological and cultural history.

🔗 esajournals.onlinelibrary.wiley.com/doi/10.1002/...

#SciComm #Ecology 🧪
The Bearded Vulture as an accumulator of historical remains: Insights for future ecological and biocultural studies
Click on the article title to read more.
esajournals.onlinelibrary.wiley.com
instbirdpop.bsky.social
Here's the clue for this week's #BitOBird game! Can you ID this bird from just this little bit? (Note: we stick to North American birds, if not we’ll tell you.) 1st to reply w/ the correct answer gets bird nerd bragging rights. If you're stumped, we'll post the answer in 2 hrs 🪶
The clue for the #BitOBird game: a close-up photo of a portion of a bird.
instbirdpop.bsky.social
🪶 We've done these surveys for the NPS since 2004. Sadly, this contract was cancelled last week. learn more about that work here: birdpop.org/pages/pa... (2/2)
Photo by Wren Wagenbach of a person standing in the alpine tundra at sunset in the Cascade Mountains in WA, USA.
instbirdpop.bsky.social
🪶Hope you have a chance to get outside this weekend!

This photo was taken by Wren Wagenbach who was on our backcountry bird monitoring crew in the Pacific NW national parks this summer. (1/2)
Photo by Wren Wagenbach of a person standing in the alpine tundra at sunset in the Cascade Mountains in WA, USA.
Reposted by The Institute for Bird Populations
instbirdpop.bsky.social
Did you ask for a bird fact? No, but you're getting one whether you like it or not. 🪶
Graphic with a photo of a Henslow's Sparrow singing by Kenneth Cole Schneider and a cartoon showing a table of judges holding up signs showing low scores. Text on the graphic says: "Unsolicited Bird Fact: Henslow's Sparrow may be North America's most disparaged singer. Early ornithologists, & even some current ones have described their short, insect-like song like this:
3
2
"a feeble hiccup," "one of the poorest of vocal efforts of any
bird," and "Il can't hear a Henslow's Sparrow sing] without a feeling of pity for a creature so constituted that he can be satisfied with such a performance."
But Herkert et al, 2020 note that sonograms of the song reveal that it is quite complex but very fast- there's a lot packed into a very short song. Maybe our ears/brain are just too slow to appreciate the artistry."
instbirdpop.bsky.social
Your support now will give us time to regroup and emerge stronger from these challenging times. In the 36 years since our founding, we’ve navigated other rough waters, and we will do so again. Donate here: birdpop.org/pages/do...
Thank you for your support! 4/4
Graphic with the following text followed by The Institute for Bird Populations logo: Emergency Appeal: Federal Funding Cut
Last week 9 of our federal grants were abruptly cancelled without cause.
If you can make a donation today, it will have a big impact.
Thank you for your support, The Institute for Bird Populations
instbirdpop.bsky.social
🪶 Going forward, we're using all of our creativity & ingenuity to retain as many of our staff as possible while we seek new sources of funding & projects where our staff can put their skills to work doing the quality science we have always done to support effective, evidence-based conservation. 3/4
Graphic with the following text followed by The Institute for Bird Populations logo: Emergency Appeal: Federal Funding Cut
Last week 9 of our federal grants were abruptly cancelled without cause.
If you can make a donation today, it will have a big impact.
Thank you for your support, The Institute for Bird Populations
instbirdpop.bsky.social
🪶 These cuts represent a huge loss for science-based conservation on public lands, damage continuous long-term monitoring programs that have huge scientific value, and will necessitate painful staffing decisions at IBP. 2/4
Graphic with the following text followed by The Institute for Bird Populations logo: Emergency Appeal: Federal Funding Cut
Last week 9 of our federal grants were abruptly cancelled without cause.
If you can make a donation today, it will have a big impact.
Thank you for your support, The Institute for Bird Populations
instbirdpop.bsky.social
🪶 If you are able, you donate here: birdpop.org/pages/do...
We lost roughly $1 million in funding without warning. Projects cancelled included all of our bird monitoring work for the National Park Service & projects w/ the Bureau of Land Management on Gunnison's Sage-Grouse, Pinyon Jays & more. 1/4
Graphic with the following text followed by The Institute for Bird Populations logo: Emergency Appeal: Federal Funding Cut
Last week 9 of our federal grants were abruptly cancelled without cause.
If you can make a donation today, it will have a big impact.
Thank you for your support, The Institute for Bird Populations
Reposted by The Institute for Bird Populations
mikemelton.bsky.social
Male Black-crested Coquette at @tapirvalley.bsky.social #CostaRica

#birds #nature #hummingbirds
A small hummingbird with iridescent green feathers, a spiky crest, long thin head plumes, and orange-spotted underparts perched on a flower bud.
instbirdpop.bsky.social
🪶 We've posted this before, but there are probably a lot of people who could use it today. Take a minute to breathe with a Swainson's Thrush.
instbirdpop.bsky.social
🪶 What cool birds or behaviors are you seeing these days?
Photo of a male Lesser Goldfinch feeding a fledgling by Linda Tanner. Text on the photo says: It's September 29th, and
Lesser Goldfinches are still feeding (older) fledglings in Western Colorado. Goldfinches nest later in the spring/summer than many other songbirds.
Maybe that's due to their diet which is fairly strictly vegetarian. Many other seed-eating birds will still feed their young insects, but goldfinches tend to stick to seeds. Perhaps they time their breeding season to coincide with seed, rather than insect, abundance? Still, very little in biology is black and white. The Lesser Goldfinches observed today were feeding on the aphids on the underside of sunflower leaves.