Female brown-headed cowbirds lay eggs in other birds' nests. Find out what you should do if you see cowbird eggs.

Add Yahoo as a preferred source to see more of our stories on Google. With spring well past sprung and summer almost here, baby critters of all types, from deer and rabbits to fledgling songbirds, may ...

Brown-headed cowbirds are generalist brood parasites, laying their eggs in the nests of many other bird species and letting the host parents raise their young. A new study seeks to understand the ...

Many biologists have a love/hate relationship with brown-headed cowbirds. We love their ecological and behavioral ingenuity, but we hate the impact they have on a variety of native nesting song birds.

DEAR JOAN: A California towhee has built a nest in our jasmine bush. She laid three eggs about one week ago. Now we look in the nest and there is a fourth egg and it sure looks like a cowbird egg. We ...

Female brown-headed cowbird (Molothrus ater) singing at Jamaica Bay Wildlife Refuge near New York City. (Credit: Rhododendrites / CC BY-SA 4.0) Brown-headed cowbirds, Molothrus ater, are fascinating ...

Add Yahoo as a preferred source to see more of our stories on Google. Cowbird eggs in a house finch nest, courtesy Lindsay Arnold Chipping sparrow nests are known to be parasitized by brown-headed ...

With spring well past sprung and summer almost here, baby critters of all types, from deer and rabbits to fledgling songbirds, may be visiting your yard. Maybe you've even spotted a nest or two. And ...