The brown-headed cowbird (Molothrus ater) is a small, obligate ...
wikipedia - 29 May 2021The brown-headed cowbird (Molothrus ater) is a small, obligate brood parasitic icterid native to temperate and subtropical North America. It is a permanent resident in the southern parts of its range; northern birds migrate to the southern United States and Mexico in winter, returning to their summer habitat around March or April.[2]
