Cowbird

n.

1.

(Zool.) The cow blackbird (Molothrus ater), an American starling. Like the European cuckoo, it builds no nest, but lays its eggs in the nests of other birds; - so called because frequently associated with cattle.

Noun

1.

cowbird - North American blackbird that follows cattle and lays eggs in other birds' nests

blackbird, genus Molothrus, Molothrus, New World blackbird