Colorado State Bird Lark Bunting TeeColorado State Bird Lark Bunting Tee The Lark Bunting is the only member of its genus a sparrow sized bird with outsized presence, especially the breeding male in his sharp black and white plumage. Colorado's state bird is a grassland specialist, and come spring, males perform a flight song display over the shortgrass prairie that stops you mid hike. Scan the eastern Colorado plains during summer and Lark Buntings are everywhere, rising and singing