204 KEY TO THE BIRDS OF EASTERN NORTH AMERICA. 
Group 5. Wing, 3.75 to 4.25 inches long 
Bill, with small hook at tip, and black bristles at base; back of 
tarsus, rounded. 
Flycatcher. 
Throat, grayish; belly, yellow; back, dull 
olive; more or less rufous brown on the tail 
feathers. 
Crested Flycatcher. 
Myiarchus crinitus. 
See No. 347. 
Throat, grayish olive; belly, pale rufous brown; upper parts, olive gray. 
Say’s Pheebe. 
Sayornis saya. 
See No. 349. 
Throat, and middle of belly, white, sometimes tinged with yellow; under 
mandible, pale at base; upper parts, brownish olive; greater portion of breast, 
and sides of the body, brownish olive; upper mandible, black; a tuft of whitish 
feathers on the flanks. 
Olive-sided Flycatcher. 
Contopus borealis. 
See No. 350. 
Throat and underparts, white; a very long forked tail; crown, black, with 
yellow patch in centre; back, gray. 
Fork-tailed Flycatcher. 
Milvulus tyrannus. 
See No. 342. 
