Female brown-headed cowbirds lay eggs in other birds' nests. Find out what you should do if you see cowbird eggs.

Brood parasitism is a reproductive tactic in which an avian species exploits the parental care of another. Parasites may lay eggs in nests of their own species (conspecific brood parasitism) or of ...

Daurian redstarts move their nesting sites closer to or even inside human settlements when cuckoos are around. In doing so, they actively protect their nest against brood parasitism, as cuckoos avoid ...

Birds that lay eggs in other nest: In the vast and complex world of nature, the game of survival is always the real strategy. For a few birds, this means not having to raise their own chicks, which is ...

Don’t want to build your own nest, spend time sitting on eggs, feeding young, yet nature calls you to reproduce, why not lay your egg in someone else’s nest and let them raise your young. This type of ...

Black birds with a greenish sheen and brown heads sometimes visit my yard during spring migration. These are male brown-headed cowbirds, and they often arrive in mixed flocks of red-winged blackbirds ...

Daurian redstarts move closer to humans to protect their nests from brood parasitism. Daurian redstarts move their nesting sites closer to or even inside human settlements when cuckoos are around. In ...