Breeds extreme south-western Canada (southern British Columbia) and Great Basin states of north-western USA south to south-central California and east to southern Wyoming and central Colorado, locally to western Texas. Winters south-western USA and Mexico (south to southern Baja California and Oaxaca).
 
Population
Estimated population is 1,200,000 (2010).
American Grey Flycatcher (Empidonax wrightii) [XC253325]
by Ross Gallardy from Deseret Land and Livestock Ranch, Rich County, Utah, United States (call)
American Grey Flycatcher (Empidonax) [XC718236]
by Daniel Lane from Santa Clarita, Los Angeles County, California, United States (call)