This guide contains birds that can be found in the Denver-Boulder Metro Area, including Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas, and Jefferson Counties.
The Northern Mockingbird (Mimus polyglottos) is the only mockingbird commonly found in North America. This bird is mainly a permanent resident, but northern birds may move south during harsh weather. This species has rarely been observed in Europe. This species was first described by Linnaeus in his Systema Naturæ in 1758 as Turdus polyglottos. The Northern ...more ↓
The Curve-billed Thrasher (Toxostoma curvirostre) is a perching bird of the thrasher group native to the southwestern United States and much of Mexico.
The Brown Thrasher (Toxostoma rufum) is a bird in the family Mimidae, which also includes the New World catbirds and mockingbirds. The dispersal of the Brown Thrasher is abundant throughout the eastern and central United States, southern and central Canada, and is the only thrasher to live primarily east of the Rockies and central Texas. It is the state bird of Georgia.
The Gray Catbird (Dumetella carolinensis), also spelled Grey Catbird, is a medium-sized northern American perching bird of the mimid family. It is the only member of the "catbird" genus Dumetella. Like the Black Catbird (Melanoptila glabrirostris), it is among the basal lineages of the Mimidae, probably a closer relative of the Caribbean thrasher and ...more ↓
The Sage Thrasher (Oreoscoptes montanus) is a medium-sized passerine bird from the family Mimidae, which also includes mockingbirds, tremblers, and New World catbirds. It is the only member of the genus Oreoscoptes. This seems less close to the Caribbean thrashers, but rather to the mockingbirds instead (Hunt et al. 2001, Barber et al. 2004).