Breeds western North America from central British Columbia, western Alberta and Montana southern in mountains to extreme north-western Mexico (northern Baja California) and southern USA (western Texas). Winters mainly in south-western USA and Mexico (locally also south to Honduras).
Audubon's Warbler (Setophaga auduboni) [XC727790]
by Ed Pandolfino from Morro Bay State Park Campground (near Morro Bay), San Luis Obispo County, California, United States (call, chwit)
Audubon's Warbler (Setophaga auduboni) [XC541383]
by id from Santa Fe, Santa Fe County, New Mexico, United States (song)
Subspecies
Considered by some authors to be a subspecies of Myrtle Warbler (Setophaga coronata).
The following 2 subspecies are recognised:
auduboni (Townsend, JK, 1837) - Breeds western North America from central British Columbia, western Alberta and Montana southern in mountains to extreme north-western Mexico (northern Baja California) and southern USA (western Texas). Winters mainly in south-western USA and Mexico (locally also south to Honduras). Considered by some authors to be a subspecies of Myrtle Warbler (Setophaga coronata).
nigrifrons (Brewster, 1889) - Western Mexico (Chihuahua and Durango). Considered by some authors to be a subspecies of Myrtle Warbler (Setophaga coronata).