Empidonax affinis affinis:
Pine forests of Mexican plateau (Michoacán to Puebla)
Empidonax affinis pulverius:
Oak-pine forests of NW Mexico (Sinaloa to Jalisco)
Empidonax affinis trepidus:
N Mexico (Coahuila and Tamaulipas); winters to Guatemala
Empidonax affinis bairdi:
Pine forests of S Mexico (Guerrero, Oaxaca and Chiapas)
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