Brown-headed cowbirds (Molothrus ater) are native to North America and commonly referred to as simply cowbirds. They also ...

The common brown-headed cowbird is the most widespread brood parasite in North America. Poly­typic. Length 7.5". A smallish, compact and stocky blackbird with a short and thick-based bill ...

The brown-headed cowbird (Molothrus ater) in North America is an obligate or generalist brood parasite of over 200 songbirds. Numerous studies show reproductive losses for individual host species (e.g ...

For example, Molothrus badius doesn't make nests and M. ater - the brown-headed cowbird studied here - does not even pair up, defend territory, and take care of its young. The Brown-headed cowbird is ...