Brown-headed Cowbird
Molothrus ater
- Least concern
- Card rarity: Common
- Birds

The brown-headed cowbird 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.
Classification
- Class
- Aves
- Order
- Passeriformes
- Family
- Icteridae
- Genus
- Molothrus