Birds: Passeriformes
Passerines (perching or songbirds) from Tyrannidae through Cardinalidae.
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Cowbird on yucca.
Pawnee National Grassland, Weld County, Colorado.
ColoradoPawnee National GrasslandavifaunaPasseriformesIcteridaeBrownheaded CowbirdMolothrus aterAvesbird
