328 NIGHTHAWKS. 



to Canada, west to Plains. Note, ivhip-poor- 

 luill, ^iven very rapidly and repeatedly, 

 also a chuckling sound. Found in wood- 

 lands by day. Flight, similar to last. 

 355. NIGHTHAWK. 



Size of last, gray above, banded with 

 white and black beneath; large spot on 

 primaries, crescent on throat and band of 

 spots on tail, white, fig. 263. Female, lacks 

 white on tail and crescent is indistinct. 

 Breeds throughout eastern N. A. from north- 

 ern Fla. to Labrador; winters in S. A.; 

 south in Sept., north in May. Eggs placed 

 in gravely spots, sometimes on gravelled 

 roofs of buildings. Note, a shrill, rasping 

 cry repeated when the bird is darting zig- 

 zag high in air and a booming sound as the 

 bird descends from this height to a point 

 near the ground when he turns to ascend. 

 Often flies in the day time and regularly in 

 the evening, not by night. 



356. FLORIDA NIGHTHAWK. 



Smaller and darker than last. Fla. to 

 Tex.; winters in S. A. 



