FIELD COLOE KEY 



xlv 



C. BROWN OR BROWNISH. 



1. SIZE RATHER LARGE. 



2. Conspicuous white patches on wings, tail, or rump. 

 3. Wings long and pointed. 



4. Wings marked with white bar ; no white on rump ; 

 tail forked ; throat white ; no bristles at base of 

 bill. Call, peent, heard as bird flies high in air. 



188. NIGHTHAWK. 



4'. Wings not marked with white bar ; rump white ; 

 tail not forked . . . .p. 278. MARSH HAWK. 



3'. Wings rather short and rounded, not marked with 



white ; tail not forked. 



5. Rump white ; under side of wings and tail yellow ; 

 black crescent on breast ... p. 127. FLICKER. 



5'. Rump not white ; under side of 



wings and tail not yellow. 

 6. Throat blackish, bordered by 

 white bar ; whole outer side of 

 tail white ; conspicuous bristles 

 at base of bill. 



p. 185. 



WHIP-POOR-WILL. 



6'. Throat not blackish ; white of tail limited. 

 7. Top of head not same color as back. 

 Forehead brownish ; back of 

 head bluish slate; tail gradu- 

 ated and showing white bor- ^ 

 dering in flight. 



p. 29. MOURNING DOVE. 



