JAN., 1909. BIRDS OP 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, 2i4a. 



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 flaviventris. 



Yellow-bellied Flycatcher. 

 See No. 212. 



