xlviii 



FIELD COLOR KEY 



8'. Tail not showing reddish in flight ; throat not 

 gray ; belly not yellow. 

 9. Upper parts uniform brownish or 

 olive-brown ; no spots, streaks, 

 or bars above or below ; usually 

 seen making short sallies into the 

 air for insects, returning to the 

 same perch or another convenient one. 



p. 260. Flycatchers. 



9'. Upper parts not uniform brownish or brownish 

 olive ; body more or less marked. 



10. Wings long and powerful ; feet small and 

 weak ; usually seen on the wing. 



p. 196. Swallows. 



10'. Wings not long and powerful ; feet not small 

 and weak ; not usually seen on the wing. 

 11. Tail stiff and pointed, 



used as a prop in ,^^0 



climbing. Seen on 



tree trunks . .p. 349. Brown Creeper. 



11'. Tail not stiff and pointed, and not used as a 

 prop in climbing. 

 12. Bill conical for cracking 

 seeds ; color variable ; most-' 

 ly ground and bush-haunting birds. 



p. 246. Finches and Sparrows. 



12'. Bill slender for catching insects. 



13. Wagtails ; tails constantly 



wagged ; usually seen in flocks 



on ground. Hind toe-nail 



elongated p. 348 



Pipit. 



