Q. Do brown-headed cowbirds select the nest of another bird to lay eggs in based on which species raised them as a nestling? In other words, if a cowbird is raised as a chick by a red-winged blackbird ...

Egg-collecting enthusiasts in the late 1880s knew the hobby was crucial for understanding the natural world, but likely never imagined that their research would help scientists more than 100 years ...

Spring is in the air. Birds are singing and beginning to build their nests. It happens every year, like clockwork. But a new study in the Journal of Animal Ecology shows that many species of birds are ...

LONDON (Reuters) - The early bird is getting even earlier. With climate change spurring earlier springs across much of North America, many birds are laying their eggs earlier in the year, according to ...

About a third of Chicago-area bird species are laying their eggs earlier than normal, a study recently published in the Journal of Animal Ecology found. Researchers believe the change in nesting is ...

Of all the vertebrates on Earth—that is, animals with backbones—birds are the only ones that lay colorful eggs. Scientists are still unsure why, but new research brings us a step closer to finding out ...