Science

How a Tern Broke the Record for the Longest Known Migration
June 28, 2016 — Researchers call the bird’s journey of 60,000 miles an “underestimate” of how far it actually flew.
Who Wins in a Fight Between Bluebirds and Swallows?
June 23, 2016 — Mountain Bluebirds could have a hard time defending their homes if APP change speeds up the arrival of their nest rivals.
Here’s Your First Look at APP’s New Birds and Climate Project
June 22, 2016 — Climate Watch is getting volunteers across the country to admire bluebirds (for science).
The Art of Hatching an Egg, Explained
June 20, 2016 — Author Tim Birkhead is at it again—this time with a written history of eggs and the wonders that lie within.
To Catch a Predator
June 20, 2016 — Want to be a raptor bander? You'll need live bait, a taco trap, a good hand cream, and years of licensed training.
What Goes On in the Mind of an Invasive Species?
June 17, 2016 — An Aesopian experiment may clue us in to how adaptable the Great-tailed Grackle truly is.
Human Noise Robs Owls of Their Ability to Hunt
June 06, 2016 — Sounds from natural-gas extraction sites can reduce birds’ ability to find and capture prey.
Why Fat Birds Are Better At Making Babies
June 03, 2016 — A new study shows that some warblers tack on the pounds—or, rather, fractions of an ounce to stay in good reproductive shape.
Christmas Bird Count. Camilla Cerea/APP
Thirty Percent of North American Bird Species Face Decline Across Seasons
May 28, 2016 — Two new studies strike similar conclusions on continental bird populations during winter and spring.
When DNA Becomes a Tool for Triaging Endangered Species
May 27, 2016 — Inbred birds lead short, troubled lives, but new research reveals a way for scientists to help.