200 KY TO THE BIRDS OF EASTERN NORTH AMERICA. 
FAMILY TYRANNID AE. 
Flycatchers. 
Group 1. Wing, from 2.13 to 2.37 inches long. 
Bill, broad and flattened, with numerous smail black bristles at base ; 
tip, with small but distinct hook. 
= 353 
Top of bill. side ef bill. 
WN Bill, with small hook at tip, flat and wide at 
SS base; back, olive green; belly, not yellow, 
or only faintly tinged with yellow. 
Least Flycatcher. 
Empidonax imininats. 
See No. 355. 
Back, olive green; belly, clear yellow. 
Yellow-bellied Flycatcher. 
Empidonac flaviventris. 
See No. 352. 
Group 2. Wing, 2.37 to 2.75 inches long. 
Under mandible, yellowish white; throat, whitish ; breast and belly, dull white, 
tinged with pale yellow; back, olive green. 
Arcadian Flycatcher. 
Green-crested Flycatcher. 
Empidonar virescens. 
See No. 353. 
