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 hack. 
Fig. 262. 
— 3. Nasal groove extending only about half way to tip of 
i bill .. Sphyrapicus, p. 210. 
Fig. 263. 
Fig. 264. 
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 . Ficoides, p. 208. 
Fig. 265. 
1'. Outside hind toe not longer than outside front toe. 
2. Head with con¬ 
spicuous crest. 
Ceophlceus, 
p. 213. 
Fig. 266. 
2'. Head without 
crest. 
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. 
