Cornell Lab of Ornithology @cornellbirds.bsky.social · 23/09/2026Dudley Edmondson has created a biodiverse space that's a magnet for regional birds & a favorite stopover for migrants along the Great Lakes. As a professional author & photographer he'll inspire us with his imagery & stories of his favorite visitors. RSVP: cornell.zoom.us/webinar/regi... 2152
Cornell Lab of Ornithology @cornellbirds.bsky.social · 22/09/2026BIRD QUIZ: Here is a bird photographed in California in early September. Do you know what species it is? Leave your answer in Comments and we'll post ours at the end of the day. Thanks to Quinn Diaz for sharing this photo with eBird and the Macaulay Library archive. 4181
Cornell Lab of Ornithology @cornellbirds.bsky.social · 19/09/2026Scroll break! Stop for a few moments and get lost in this murmuration of Metallic Starlings in Queensland, Australia. 1232
Cornell Lab of Ornithology @cornellbirds.bsky.social · 18/09/2026From the fastest dive to the largest wingspan, meet remarkable raptors from around the world! 🦅 Get a sneak peek at our upcoming Wonderful World of Raptors course with this free poster, illustrated by Joel Popp. Download and print your free copy at the link below: dl.allaboutbirds.org/raptor-posterdl.allaboutbirds.orgWonderful World of Raptors Poster DownloadDo you know the largest raptor? What about the smallest? Explore fun raptor facts from around the world in this free, downloadable poster. 0162
Cornell Lab of Ornithology @cornellbirds.bsky.social · 15/09/2026BIRD QUIZ: Here is a bird photographed in Nova Scotia in early September. Do you know what species it is? Leave your answer in Comments and we'll post ours at the end of the day. Thanks to Heather Michaud for sharing this photo with eBird and the Macaulay Library archive. 4242
Cornell Lab of Ornithology @cornellbirds.bsky.social · 14/09/2026Hummingbirds move too fast for most of us to see clearly. In a new Wild Birds Revealed video, filmmakers Tim and Russell Laman slow things down for an up-close look at Costa’s and Anna’s Hummingbirds—their flight, feeding, and relationship with flowers. Watch: bit.ly/4x3tn71 0231
Cornell Lab of Ornithology @cornellbirds.bsky.social · 12/09/2026Free Birds of the World Webinar! Diversity & Conservation of the World's Bustards, presented by members of the Bustards Without Borders team. The team just released a new Multi-species Action Plan for bustards, which grants new protections to these iconic species. birdsoftheworld.org/bow/news/bwb... 0150
Cornell Lab of Ornithology @cornellbirds.bsky.social · 08/09/2026BIRD QUIZ: Here is a bird photographed in Texas in September 2025. Do you know what species it is? Leave your answer in Comments and we'll post ours at the end of the day. Thanks to Harlan Stewart for sharing this photo with eBird and the Macaulay Library archive. 2171
Cornell Lab of Ornithology @cornellbirds.bsky.social · 06/09/2026Join scientific illustrator Liz Clayton Fuller @ipaintbirbs.bsky.social on September 13 for a workshop that's sure to be a hoot! 🦉🎨✨ Learn to bring your owl illustrations to life with helpful guidance from Liz. Buy your tickets soon! Registration is limited: academy.allaboutbirds.org/live-event/i...academy.allaboutbirds.orgIllustrating Owls with Liz Clayton Fuller | Bird Academy • The Cornell LabOwls! They’re enigmatic, mysterious, and a lot of fun to draw! Learn to draw owls and then add paint to your sketches with friendly guidance and inspiration ... 1439
Cornell Lab of Ornithology @cornellbirds.bsky.social · 04/09/2026Using the habitat clues in this video, can you guess which birds will be featured in our upcoming videos from Wild Birds Revealed? Wildlife filmmakers Tim and Russell Laman use stunning close-up footage to reveal what makes familiar birds extraordinary. Drop your guesses in the comments. 081
Cornell Lab of Ornithology @cornellbirds.bsky.social · 02/09/2026Free webinar alert! RSVP to learn strategies to protect and increase the biodiversity of your yard for native butterflies, moths, and other beneficial insects. All registrants will receive a copy of the recording after the event. RSVP: cornell.zoom.us/webinar/regi... 1288
Cornell Lab of Ornithology @cornellbirds.bsky.social · 01/09/2026BIRD QUIZ: Here is a bird photographed in Pennsylvania in early September 2024. Do you know what species it is? Leave your answer in Comments and we'll post ours at the end of the day. Thanks to Peter Hamner for sharing this photo with eBird and the Macaulay Library archive. 3272
Cornell Lab of Ornithology @cornellbirds.bsky.social · 26/08/2026Fall Migration is already in full swing! Check out birdcast.org for live maps, migration alerts, and forecasts, and sign up for Email Migration Alerts (birdcast.org/migration-to... Dim lights at night, Treat your window by day to help migrating birds avoid glass collisions. 02010
Cornell Lab of Ornithology @cornellbirds.bsky.social · 25/08/2026BIRD QUIZ: Here is a bird photographed in Arizona in mid-August. Do you know what species it is? Leave your answer in Comments and we'll post ours at the end of the day. Thanks to Melissa Mancuso for sharing this photo with eBird and the Macaulay Library archive. 2200
Cornell Lab of Ornithology @cornellbirds.bsky.social · 24/08/2026Shorebirds often sport similar shapes and patterns, which makes their size one of the most important clues to help with an ID. Find out more and learn what to look for with this free downloadable guide, including full-color photos, and a size reference chart: dl.allaboutbirds.org/shorebird-po...dl.allaboutbirds.orgA Shorebird ID Guide to Print at Home!Become familiar with the diversity of shorebirds from plovers to peeps, and more with this Shorebird ID Guide. 0213
Cornell Lab of Ornithology @cornellbirds.bsky.social · 11/08/2026BIRD QUIZ: Here is a bird photographed in Colorado in early August 2025. Do you know what species it is? Leave your answer in Comments and we'll post ours at the end of the day. Thanks to Rachel Leggett for sharing this photo with eBird and the Macaulay Library archive. 2200
Cornell Lab of Ornithology @cornellbirds.bsky.social · 04/08/2026BIRD QUIZ: Here is a bird photographed in Virginia in early August 2021. Do you know what species it is? Leave your answer in Comments and we'll post ours at the end of the day. Thanks to Martina Nordstrand for sharing this photo with eBird and the Macaulay Library archive. 8273
Cornell Lab of Ornithology @cornellbirds.bsky.social · 28/07/2026BIRD QUIZ: Here is a bird photographed in Montana in mid-July. Do you know what species it is? Leave your answer in Comments and we'll post ours at the end of the day. Thanks to Jan Thom for sharing this photo with eBird and the Macaulay Library archive. 10250
Cornell Lab of Ornithology @cornellbirds.bsky.social · 21/07/2026BIRD QUIZ: Here is a bird photographed in Alberta in mid-July. Do you know what species it is? Leave your answer in Comments and we'll post ours at the end of the day. Thanks to Ayden Valkenburg for sharing this photo with eBird and the Macaulay Library archive. 4252
Cornell Lab of Ornithology @cornellbirds.bsky.social · 17/07/2026If you're in an area that's impacted by the recent wildfires, you may be curious about how smoke impacts birds as well. Scientists have only recently begun studying smoke's effect on birds, read some of what they've found so far: www.allaboutbirds.org/news/is-the-...allaboutbirds.orgIs the Smoke from Wildfires Dangerous to Birds?A Barn Owl hunting in the morning fog and smoke of California wildfires. Photo by Sam McMillian / Birdshare. Smoke can be hazardous to birds just as it is to people, due to the mix of fine particul... 0246
Cornell Lab of Ornithology @cornellbirds.bsky.social · 15/07/2026Did you know you can upload your field notes/sketches along with your eBird checklists? We love coming across these beautiful artistic snapshots from your birding adventures in Macaulay Library. Check out our Bird Academy sale on bird art courses + free webinars: academy.allaboutbirds.org 0337
Cornell Lab of Ornithology @cornellbirds.bsky.social · 14/07/2026BIRD QUIZ: Here are a bird and its chick photographed in Michigan in early July. Do you know what species they are? Leave your answer in Comments and we'll post ours at the end of the day. Thanks to Matthew Dolkart for sharing this photo with eBird and the Macaulay Library archive. 2280
Cornell Lab of Ornithology @cornellbirds.bsky.social · 12/07/2026Did you know that the warblers we see today in North America don’t always get their bold yellow colors from their own ancestors, but from other warbler species via hybridization? To celebrate warblers we’ve got a paint by numbers free downloads available: dl.allaboutbirds.org/warbler-pain... 0225
Cornell Lab of Ornithology @cornellbirds.bsky.social · 09/07/2026New Living Bird magazine article: how a writer’s experiences with watching owls helped her recover from a traumatic brain injury. New studies are showing how birding can affect brain structure & foster a sense of well-being. www.allaboutbirds.org/news/birding... 0102
Cornell Lab of Ornithology @cornellbirds.bsky.social · 07/07/2026BIRD QUIZ: Here is a bird photographed in Colorado in early July 2021. Do you know what species it is? Leave your answer in Comments and we'll post ours at the end of the day. Thanks to Johanna Beam for sharing this photo with eBird and the Macaulay Library archive. 4160
Cornell Lab of Ornithology @cornellbirds.bsky.social · 30/06/2026BIRD QUIZ: Here is a bird photographed in early June in Wisconsin. Do you know what species it is? Leave your answer in Comments and we'll post ours at the end of the day. Thanks to Jonathan Fisher for sharing this photo with eBird and the Macaulay Library archive. 3240
Cornell Lab of Ornithology @cornellbirds.bsky.social · 28/06/2026Behind the scenes tour for our Living Bird magazine production! The Summer issue features bright warblers, Red Cockaded Woodpeckers & more! This quarterly magazine is available in print only to our members, the articles are also free online! Become a member join.birds.cornell.edu/page/150611/... 0140
Cornell Lab of Ornithology @cornellbirds.bsky.social · 17/06/2026Grasslands support people’s livelihoods, Indigenous cultures & ecosystem functions. But they are disappearing rapidly. More than 1/2 of bird species that depend on grasslands are in steep decline. We’re proud to be part of America’s Grasslands Coalition, learn more: grasslanders.org 1183
Cornell Lab of Ornithology @cornellbirds.bsky.social · 16/06/2026BIRD QUIZ: Here is a trio of birds photographed in early June in Virginia, north of their normal range. Do you know what species it is? Leave your answer in Comments and we'll post ours at the end of the day. Thanks to Anne Bielamowicz for sharing this photo with eBird and the Macaulay Library. 1201
Cornell Lab of Ornithology @cornellbirds.bsky.social · 09/06/2026BIRD QUIZ: Here is a bird photographed in Alberta in mid-June 2023. Do you know what species it is? Leave your answer in Comments and we'll post ours at the end of the day. Thanks to Sydney Mohr for sharing this photo with eBird and the Macaulay Library archive. 1160
Cornell Lab of Ornithology @cornellbirds.bsky.social · 04/06/2026The final event of Welcome Back Birds is coming up. Cornell Lab experts will talk about how to bring more kinds of birds to your yard & how to keep them safe & enjoy them all summer long. Register here: hubs.la/Q048D9J90 If you registered for April/May’s live events, you don't need to re-register. 0153
Cornell Lab of Ornithology @cornellbirds.bsky.social · 02/06/2026BIRD QUIZ: Here is a bird photographed in Nunavut in early June 2019. Do you know what species it is? Leave your answer in Comments and we'll post ours at the end of the day. Thanks to Paul Jones for sharing this photo with eBird and the Macaulay Library archive. 1212
Cornell Lab of Ornithology @cornellbirds.bsky.social · 27/05/2026Our Bartels Science Illustration Program is calling for applicants! This is a full-time, paid, in-person appointment. Residency begins in the fall and spans 6–12 months. Please note, Visa sponsorship is not available. Deadline for applications is May 29, 2026. www.birds.cornell.edu/illustrators/ 02714
Cornell Lab of Ornithology @cornellbirds.bsky.social · 26/05/2026BIRD QUIZ: Here is a bird photographed in Michigan in mid-May. Do you know what species it is? Leave your answer in Comments and we'll post ours at the end of the day. Thanks to Jocelyn Anderson for sharing this photo with eBird and the Macaulay Library archive. 4272
Cornell Lab of Ornithology @cornellbirds.bsky.social · 23/05/2026Warblers are exhilarating to ID, but they can also be a real challenge! Brush up on our tips for identifying these three easy to confuse birds, Palm Warblers, Cape May Warblers, and Prairie Warblers. Then test what you know with a re-playable practice quiz: academy.allaboutbirds.org/how-to-id-pa...academy.allaboutbirds.orgHow to ID Palm Warblers, Cape May Warblers, and Prairie WarblersThese three sunny warbler species might be tricky to tell apart. Pick up our identification tips for Palm Warblers, Cape May Warblers, and Prairies Warblers. Then, train your ID skills with a replayable quiz! 0212
Cornell Lab of Ornithology @cornellbirds.bsky.social · 14/05/2026Join us for a video premiere and live Q&A on May 22 at 2:00 p.m. EDT! 📣 🐦 Celebrate the joy of spring birding and enjoy a video following Lab staff into our local woods. Co-hosts Kevin McGowan and Samantha Hauser will introduce the premiere and answer your questions. Can’t wait to see you there!academy.allaboutbirds.orgVideo Premiere: Walk in the Woods with Kevin McGowan | Bird Academy • The Cornell LabJoin us live, Friday, May 22, 2:00 p.m. EDT / 11:00 a.m. PDT Kevin McGowan searches the woods along with staffers on one of his daily walks. A Live Video Pr ... 0113
Cornell Lab of Ornithology @cornellbirds.bsky.social · 12/05/2026BIRD QUIZ: Here is a bird photographed in Illinois in early May. Do you know what species it is? Leave your answer in Comments and we'll post ours at the end of the day. Thanks to Marky Mutchler for sharing this photo with eBird and the Macaulay Library archive. 4190
Cornell Lab of Ornithology @cornellbirds.bsky.social · 06/05/2026Warblers are exciting heralds of spring, but they can be notoriously tricky to ID! Pick up our quick, downloadable photo guide featuring eastern, western, and widespread warbler species of the U.S. and Canada to compare warblers in their spring plumage: dl.allaboutbirds.org/free-warbler...dl.allaboutbirds.orgFree Warbler ID Guide PDFGet help with Warbler ID and learn what to look for with these free, downloadable warbler photo guides. 0151
Cornell Lab of Ornithology @cornellbirds.bsky.social · 05/05/2026BIRD QUIZ: Here is a bird photographed in Kentucky in early May 2022. Do you know what species it is? Leave your answer in Comments and we'll post ours at the end of the day. Thanks to Dorian Anderson for sharing this photo with eBird and the Macaulay Library archive. 2161
Cornell Lab of Ornithology @cornellbirds.bsky.social · 04/05/2026More than 373 MILLION birds are forecast to fly across the East Coast and eastern Midwest tonight. Help keep them safe and on track by turning off nonessential lights from 11 PM to 6 AM. Learn more about migration, window safety, and sign up to get alerts: birdcast.org/migration-to... 17939
Cornell Lab of Ornithology @cornellbirds.bsky.social · 01/05/2026Save 40% on Warbler ID learning!📣Brush up on Warbler ID with our self-paced, online course. You'll learn to confidently ID 51 warblers from across the U.S. and Canada and start greeting these delightful, migratory birds by name. academy.allaboutbirds.org/product/be-a...academy.allaboutbirds.orgBe a Better Birder: Warbler Identification | Bird Academy • The Cornell LabThe most comprehensive online course on warblers. Covers all 51 species in the U.S. and Canada and gives you practice tools to prepare you for the field. 0131
Cornell Lab of Ornithology @cornellbirds.bsky.social · 30/04/20261 day. 1 team. 1 epic bird quest. Big Day is back on May 9! Team Sapsucker will split up to count birds in Appalachia & the Maya Forest in Guatemala, spotlighting the “sister landscapes” migratory birds depend on. Help us beat last year's $1M+ raised for conservation: dl.allaboutbirds.org/bigday2026 0151
Cornell Lab of Ornithology @cornellbirds.bsky.social · 28/04/2026BIRD QUIZ: Here is a bird photographed in South Carolina in mid-April. Do you know what species it is? Leave your answer in Comments and we'll post ours at the end of the day. Thanks to Pramod Prabhu for sharing this photo with eBird and the Macaulay Library archive. 2273
Cornell Lab of Ornithology @cornellbirds.bsky.social · 20/04/2026Our next Welcome Back Birds live session is coming up—join Cornell Lab experts to explore bird migration & can’t-miss spectacles near you. Register once to access May + June events, the April recording (all about bird songs), bonus resources & a discount on Bird Academy courses! hubs.la/Q048D9J90 0233
Cornell Lab of Ornithology @cornellbirds.bsky.social · 19/04/2026The results are in, 10/10 cats love our new video: Learn 10 Bird Songs of Spring—Common Species Across North America. Humans can learn to ID some early spring arrival bird songs by watching the full video: www.youtube.com/watch?v=y_Qt... & cats can reconnect with nature safely from your living room! 1222
Cornell Lab of Ornithology @cornellbirds.bsky.social · 18/04/2026What's your ideal nest? A cavity like a bluebird? Perching in an open-cup nest like a Northern Cardinal? Or bobbing in nest made from floating vegetation, like a Common Gallinule? We designed a special quiz tells you where you’d nest if you were a bird: academy.allaboutbirds.org/whats-your-i... 2244
Cornell Lab of Ornithology @cornellbirds.bsky.social · 15/04/2026Peak spring migration is fast approaching & with it comes a serious threat to birds. By making simple changes to your home or building, you can help protect birds & support their incredible journeys. Visit www.stopbirdcollisions.org to learn how to make glass safer & reduce light pollution. 02310
Cornell Lab of Ornithology @cornellbirds.bsky.social · 14/04/2026BIRD QUIZ: Here is a bird photographed in Hawaii in early April. Do you know what species it is? Leave your answer in Comments and we'll post ours at the end of the day. Thanks to Robert Hollyer for sharing this photo with eBird and the Macaulay Library archive. 1261
Cornell Lab of Ornithology @cornellbirds.bsky.social · 13/04/2026For years researchers have been curious about an interesting trait of Red-breasted Nuthatches. This species add a curious substance to their nesting holes. It wasn’t until 2024, that they’ve been able to test their theories and publish an answer. www.allaboutbirds.org/news/why-nut...allaboutbirds.orgWhy Do Nuthatches Coat Their Nest Entrances With Sap?A simple series of experiments looked into why Red-breasted Nuthatches use sticky conifer resin to defend against nest predators and competitors. 0263
Cornell Lab of Ornithology @cornellbirds.bsky.social · 11/04/2026Each spring, migratory birds travel thousands of miles—only to face deadly threats in our cities. Over 1B die in the U.S. yearly from window collisions. Dim lights at night. Treat glass by day. These simple steps save lives. Learn more: www.stopbirdcollisions.org/solutions/ 04213