Brown-headed Cowbird Gallery

Male Brown-headed Cowbird, Photo by Kelly Colgan Azar. (See Note*)
Female Brown-headed Cowbird. Photo by Kelly Colgan Azar (See note*)
Cowbird eggs vary greatly in color. Photo by Keith Kridler
Cowbird egg in Black-capped Chickadee nest. Photo by Bet Z. Smith
Cowbird egg in Carolina Wren nest. Photo by Keith Kridler
Cowbird hatchling in Black-capped Chickadee nest. Photo by Bet Z. Smith
Cowbird hatchling in Bluebird nest. Photo by Keith Kridler
Cowbird hatchling much larger than nest-mates of host species. Photo by Keith Kridler
Cowbird hatchling. Photo by Keith Kridler
Cowbird juvenile. Photo by Victor* (see note)

*Selected Photos in this gallery attributed to Kelly Colgan Agar  and Victor under Creative Commons License.