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 ...

In late spring and early summer, birds are busy building nests and raising their young. However, one exception is the freeloading Brown-headed Cowbird, laying its eggs in the nests of other birds, a ...

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 ...

YAKIMA, Wash. -- The brown-headed cowbird is bad news for other songbirds because it lays its eggs in the nest of other birds and takes no part in incubating its eggs or raising the young. This ...

Those are the first lines of a song written in 1979 by Bill Staines, once a regular on Garrison Keillor's radio show. The brown-headed cowbird, our resident cowbird, does have a place in the choir, ...

Over a door in the quiet yard of a historic home in Newburyport, a drama is unfolding. A house finch couple built a nest, the female laid her eggs, and then a brown-headed cowbird showed up. Since ...

Brown-headed Cowbirds (Molothrus ater) are brood parasites that lay their eggs in the nests of host species. Cowbird chicks typically grow up in mixed broods consisting of one or more cowbird chicks ...

Thorington, K. K., Bowman, R., and Fleischer, Robert C. 2007. "Molothrus ater (Brown-headed Cowbird) lays egg in artificial nest in highlands County, Florida ...

The observation of three brown-headed cowbirds a few days ago were the first we've ever seen in our yard. The range of these blackbird relatives has been expanding throughout North America this ...