Cowbird mothers abandon their eggs in the nests of other bird species, but the chicks somehow manage to find their flock and ...

When a female cowbird is ready to have a baby, she’ll stake out another bird’s nest, wait until the coast is clear, then slip ...

Unlike most other bird species, the brown-headed cowbird (Molothrus ater) lays its eggs in the nests of other bird species ...

What Is A Cowbird? "Cowbirds look like a shiny iridescent blackbird with its head dipped in chocolate and have a unique ‘gloo-gloo-glee’ call that they make," Ellison says. Female and juvenile ...

Thus, cowbird chicks must quickly figure out how to survive and thrive despite the unpredictable social environment they find themselves in.

An adult cowbird may destroy the eggs or young of host birds, to give their egg an edge. For species already close to the edge, cowbirds' parasitism can affect their population.

Many species of birds get reputations of various sorts. One species that gets a bad rap, through no fault of its own, is the brown-headed cowbird. The female cowbird lays its eggs in the nests of ...

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 ...

If a cowbird ends up in a prothonotary warbler nest with four host chicks, the cowbird either perishes or the number of warbler chicks drops, usually to two, the study found.

Many species of birds get reputations of various sorts. One species that gets a bad rap, through no fault of its own, is the brown-headed cowbird. The female cowbird lays its eggs in the nests of ...