Many consider cowbirds to be a nuisance. Setting up backyard bird feeders or a birdbath are simple and easy ways to enjoy birdwatching in your own yard while supporting local bird populations. That ...

I go to get my binocs to see if maybe there are cowbirds or rusty blackbirds among them. Alas, my neighbor at that very ...

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 ...

Eggs are white with brown spots and are usually larger than host eggs. Female cowbirds remove host eggs and nestling cowbirds outcompete host nestlings. Cowbirds have been recorded as successfully ...

From savage cowbirds to more subtle catfish, see a range of species that trick others into raising their young.

Historically, cowbirds have often been culled without addressing ultimate causes of songbird population declines. Similar to other North American blackbirds, cowbirds depredate agricultural crops, ...

It’s active against a number of birds including: Pheasants, blackbirds, crows, cowbirds, grackles and cranes.

As the birds move off to another woodlot, their clucking calls can be heard as they sail overhead in a seemingly never-ending ...

Crows and gulls may thrive at our garbage dumps, blackbirds and cowbirds at our feedlots, robins and bulbuls in our city parks. But the future of most bird species depends on our commitment to ...

For hosts of brood parasitic birds, the costs of parasitism range from diminished nestling growth rate, due to competition with larger and more competitive parasitic offspring (cowbirds ...

They state their hypothesis as: brown-headed cowbirds change the composition of songbird communities by depressing the number of suitable host individuals. This work has management implications in ...