PICARI.E : CUCKOOS, ETC. 171 



Humming-birds are known ; and six or more are found 

 in North America. 



None of the scansorial birds are more remarkable in 

 their appearance than the Toucans or Rhamphastidse, which 

 have the bill almost as long as the body. The bill is 

 light, being cellular in its structure, and is serrated on its 

 edges. Toucans have a long tono-ue which is barbed on 



*_> o o 



both edges. They inhabit warm countries, and are about 

 the size of a dove, but more slender. 



The Cuckoos or Cuculidse are scansorial birds which 

 have a gently curved bill, long body, long tail, and rather 

 long tarsi. They vary in size from that of the Yellow- 



FIG. 202. 



Yellow-billed Cuckoo, Coccygus americanus, Bonaparte. 



billed Cuckoo (Fig. 202), twelve inches in length, to that 

 of the curious Chapparal Cock or Roadrunner (Geo- 

 coccyx californianus)) which is found in the south- 

 western portions of our country, and which is about 

 twenty-four inches long, its tail being about a foot in 

 length. 



