200 



WOODPECKERS 



those of its larger relative. In southern and western Texas many of 

 its nests are destroyed by the cloud-burst floods which annually 

 sweep the rivers there. 



ORDER PICI: WOODPECKERS, ETC. 

 FAMILY PICIDiE: WOODPECKERS. 



KEY TO GENERA. 



1. Outside hind toe longer than outside front toe. 

 2. Toes 4, 2 pointing forward, 2 back. 



Fig. 262. 



Fig. 264. 



a— 3. Nasal groove extending only about half way to tip of 

 3 bill Sphyrapicus, p. 210. 



3'. Nasal groove extending nearly to tip of bill. 



4. Plumage wholly black except for white head and 

 white patch on wings . . . Xenopicus, p. 207. 



4'. Plumage mainly white below and spotted with white 

 above . Dryobates, p. 201. 



£ 2'. Toes 3, 2 pointing forward, 1 back . Picoides, p. 208. 



Fig. 265. 



1'. Outside hind toe not longer than outside front toe. 



Head with con- 

 spicuous crest. 

 Ceopliloeus, 

 p. 213. 



2'. Head without 

 crest. 



Fig. 266. 



m 



Fig. 267. 



3. Under surface of wing and tail yellow or red. 



Colaptes, p. 220. 



3'. Under surface of wing and tail not yellow or red ; upper 



mandible with a distinct lateral ridge and nasal groove. 



Melanerpes. p. 215. 



