the brown-headed cowbird (molothrus ater)

brown-headed cowbird molothrus ater animal background beak bill bird birding black blackbirds brood parasite brown brown head headed cowbird plumage conservation cowbirds ecology environment environmental fauna feather feathers food grass green habitat meadow ater natural nature nest north america ornithology outdoor outdoors parasite parasitic parasitism park passeriformes passerine song birds spring wild wildlife wildlife wing