FAMILY TYRANNIDAH. — FLYCATCHERS. 201 
Under mandible, yellowish white; throat and underparts, greenish yellow, back, olive 
vreen. 
Yellow-bellied Flycatcher. 
Empidonax flaviventris. 
See No. 352. 
Flycatcher. 
Under mandible, pale yellowish white, or brownish white: back, tinged with 
olive brown; wing, over 2.60. 
Traill’s Flycatcher. 
Empidonas traillii alnorum. 
See No. 354. 
Under mandible, usually pale brown or brownish 
white; wing, under 2.60. 
Least Flycatcher 
Empidonax minimus. 
See No. 355. 
