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 ...

That said, food and water supplies may also attract birds you don’t want, like the cowbird. Brown-headed cowbirds, commonly ...

the host chicks might have starved to death due to competition with cowbird nestmates and then been removed by the host adult as a form of nest sanitation). This immersive Picture Story features ...