Of nine different behavioral or fitness-related responses in 160 bird species examined, noise pollution had negative impacts on eight of them.

For a migratory bird, good timing is a matter of life or death. Every spring countless warblers, geese, hummingbirds, and more—one in five bird species, all told—leave their winter hideaway on a long ...

Q. Why do mockingbirds mimic the songs of other birds? Are there any other bird mimics? Can birds reproduce the sounds of other animals? A. Mimicry is a common trait of the northern mockingbird, which ...

Since the 1970s, the U.S. has lost billions of birds. We now know that those losses aren't just growing—they are accelerating ...

For flowering plants, reproduction is a question of the birds and the bees. Attracting the right pollinator can be a matter ...