Jan., 1909. Birds of Illinois and Wisconsin — Cory. 



171 



Flycatcher. 



First primary, shorter than fifth ; under mandible, pale yellowish 

 white, or brownish white ; back, tinged with olive brown ; wing, over 

 2.60; eye ring and wing bars, whitish. Empidonax traillii, and races. 



Traill's Flycatcher. 

 See Nos. 214, 214a. 



Eye ring, whitish; first primary, shorter 



than fifth; under mandible, usually pale 



-» brown or brownish white; wing, under 2.60. 



Empidonax minimus. 

 Least Flycatcher. 

 See No. 215. 



:-^..^" 



GROUP 3. Wing, 2.75 to 3.25 inches long. 



Bill, flat and wide, with small hook at tip, 

 and black bristles at base. 



Wing, under 3.05; under mandible, yel- 

 lowish white; throat and under parts, pale 

 greenish yellow ; back, olive green. Empidonax flaviventr is. 



Yellow-bellied Flycatcher. 

 See No. 212. 



