In nature, as in horse racing, sometimes you can win by a neck. A new study shows that Brown-headed Cowbirds hatch from their eggs with extra-strong neck muscles, an evolutionary win that helps them ...

Brown-headed cowbird chicks have a distinct evolutionary advantage, and all because they can stick their neck out! This bird ...

Some consider brown-headed cowbirds to be a threat.

Unlike the majority of birds, brown-headed cowbirds (Molothrus ater) do not start life surrounded by their own kind. The females do not build nests, but instead add their eggs to the clutches of other ...

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 ...

Forbes contributors publish independent expert analyses and insights. GrrlScientist writes about evolution, ecology, behavior and health. Most birders don’t much like cowbirds because the adults lay ...