Order: Empidonax traillii
Family:
Tyrant Flycatchers, Calyptura
(Tyrannidae)
| Subspecie | Distribution |
|---|---|
| brewsteri | sw British Columbia (w Canada) to c California (w USA) |
| adastus | s British Columbia (w Canada) to e California, Utah and Colorado (wc USA) |
| extimus | s California to New Mexico |
| traillii | sc Canada and se Canada to c USA and ne USA |
