i66 Field Museum of Natural History — Zoology, Vol. IX. 



Crown, red (male); crown, ashy gray, nape, red (female); throat 

 and under parts, pale ash gray, the belly tinged with red or buff, accord- 

 ing to season. Centurus carolinus. 



Red-beUied Woodpecker. 

 See No. 196. 



Rump and upper tail coverts, pure white; greater part of second- 

 aries and tertials, white, with black shafts (sometimes with one brown 

 band near tip); entire head and throat, red (adults) ; immature 

 birds have the head brownish gray, speckled and marked with dull 

 black, but usually showing more or less red in places. 



Melanerpes erythrocephalus. 

 Red-headed Woodpecker. 

 See No. 195. 



GROUP 3. Wing, 5.50 to 8.00. 



Under surface of wings and tail, yellow; a band of red on the nape, 



and a black molar stripe (male ) ; similar but without the black molar 



stripe (female). Colaptes auratus luteus. 



Northern Flicker. Golden-winged Woodpecker. 



See No. 197. 



Rump and upper tail coverts, pure white; greater portion of 

 tertials, white, the shafts, black; middle tail feathers, not marked 

 with white; belly, white. Adult birds of both sexes have the entire 

 head red ; immature birds have the head dark brownish gray. 



Melanerpes erythrocephalus. 

 Red-headed Woodpecker. 

 See No. 195. 



Middle tail feathers, marked with white; under parts, ashy, tinged 

 with red or buff on the belly; back barred with black and white; 

 whole top of head, red (male); top of head, ash gray, nape red 

 (female). Centurus carolinus. 



Red-bellied Woodpecker. 

 See No. 196. 



Throat, red (male) or white (female), not gray; belly, tinged 

 with yellow; wing coverts, mostly white. Sphyrapicus varius. 



Yellow-bellied Woodpecker. 

 See No. 193. 



