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Bird Migration

A Red Knot walking on a rocky coast with water splashing around it.
These 5 Birds Are All Winners in the Migration Olympics
August 08, 2024 — The world’s best athletes impress us with their prowess every two years. But have you heard about the 50,000 mile annual marathon of the Arctic Tern or the 100-mile-per hour sprint of a Whimbrel?
A Black-throated Blue Warbler stands on a branch looking at the camera in front of an out-of-focus green background.
As Spring Shifts Earlier, Many Migrating Birds Are Struggling to Keep Up
March 07, 2024 — With the climate warming, leaves and blooms are popping out ahead of schedule. A wide-ranging new study shows why this trend is troubling for a variety of bird species.
What This Gruesome Stork Taught Us About Bird Migration
October 30, 2023 — Long before tracking technology, the most concrete testament to bird migration was a stork impaled by a spear.
Close up of a brown and white bird with a long curved yellow beak looking at the camera, held in someone's hands.
A Migrating Cuckoo Named Hummus Makes a Tasty Case for Land Conservation
August 31, 2023 — On its international journey south, one federally threatened bird has passed through at least six protected areas.
Three sparrows with colorful bands on their legs forage for seeds on the ground.
Golden-crowned Sparrows Prefer to Spend Winter With Their Buddies
August 29, 2023 — A decade-long bird monitoring program found that the songbirds are more likely to live and travel with their friends.
A gray and yellow warbler lies dead on a sidewalk, feet up in the air, while people and cars pass by, the busy city in the background.
Unseen Danger: One Day of Deadly Window Strikes for New York’s Birds
June 26, 2023 — Go behind the scenes with the dedicated New Yorkers working to stop the flood of avoidable deaths that occur in the city each migration season.
Conservation Challenges
A close up portrait of a small, streaky, brown and white bird looking at the camera.
Migrating Birds Change Their Scenery—and Their Gut Bacteria
April 20, 2023 — A new study using birds killed in window collisions finds avian microbiomes, unlike those of mammals including humans, vary as they travel, changing with the surrounding environments.
A little brown and white thrush with its feathers fluffed up perches on a fallen tree in a forest holding a red berry in its beak.
Forest Fragments Act Like ‘Convenience Stores’ for Migrating Birds, Study Finds
March 31, 2023 — Using radar data, scientists identified the most popular stopover sites for migrants across the eastern United States. But these same strongholds are often overlooked in conservation strategies
A yellow bird in flight, blue sky in the background.
Migrating Male Birds Race Ahead to Keep Up with Spring’s Early Arrival
January 26, 2023 — New research finds females are lagging behind males as they try and keep up with earlier springs driven by climate change.
Bird Science
An illustration of a bird flying between brightly and dimly lit cities.
How to Make Your Outdoor Home Lighting Bird-Friendly
May 31, 2022 — Learn about shielding lights and other ways to make your outdoor lighting more bird-friendly.
ROCKIES Bird-friendly Buildings