TYRANNID^E: Tyrant Flycatchers 



S.V. Apr. -Oct. Com- 

 mon. Abundant in migration 

 and widely distributed at low 

 elevations. Nests in canyons 

 of foot-hills, and upward into 

 Transition Zone. In the Rocky 

 Mountains it nests almost to 

 timber-line. 



Western Flycatcher 



S.V. Apr. -Sept. Com- 

 mon. Widely distributed in 

 migration. Nests in Upper 

 Sonoran and Transition Zones, 

 to 8000 feet or more, usually 

 near water. 



Western Wood Pewee 



S.V. Apr.-Sept. Com- 

 mon. In willow growth of open 

 country and in wooded canyons, 

 up to about 5000 feet elevation. 



Traill Flycatcher 



Differences existing between the Hammond, Wright, and Gray Fly- 

 catchers are so small and ill-defined that even with birds in hand experts 

 are often puzzled to determine identities. 



The other small, obscurely colored Flycatchers the Traill and West- 

 ern Wood Pewee can usually be determined in the field, though the Traill 

 may easily be confused with the first-mentioned group. 



