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 ...

Some consider brown-headed cowbirds to be a threat. Setting up backyard bird feeders and birdbaths is an easy way to enjoy birdwatching in your yard while supporting local bird populations. However, ...

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 ...

Brown-headed cowbird chicks have a distinct evolutionary advantage, and all because they can stick their neck out! This bird species lays its eggs in the nests of other birds, leaving the ...

The brown-headed cowbird has been recorded as attempting to parasitize 220 other species of birds. I say “attempting” because some species recognize that the cowbird egg is not their egg, and they ...

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 ...