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 ...

Spring in the Arctic brings forth a plethora of peeps and downy hatchlings as millions of birds gather to raise their young. The same was true 73 million years ago, according to a new article. The ...

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 in places with intensive human activity, particularly where agriculture ...