Brown-headed cowbird (Molothrus ater), Yellowstone National Park, Wyoming, United States of America, North America

Adult bull American Bison buffalo ( Bos bison ) with Brown-headed Cowbird ( Molothrus ater ) on back in prairie landscape at Riding Mountain National Park Manitoba Canada

Bronzed Cowbird (Molothrus aeneus) and Red-winged Blackbird (Agelaius phoeniceus), males fighting, Sinton, Corpus Christi, Coastal Bend, South Texas, USA

Bronzed Cowbird (Molothrus aeneus), male displaying, Sinton, Texas Coast, USA