192 



KEY TO THE BIRDS OF EASTERN NORTH AMERICA. 



Toi^ts, three; crown, 

 bl;u;k ; hack, black , 

 without white. 



Arctic Three=toed Woodpecker. 



Picoides arcticus {female). 

 See No. 328. 



Toes, three ; crowu, yel- 

 low ; hncl\ hiack and 

 white. 



American Three=loed W odpecker. 

 Banded^backed Woodpecker, 



Picoides americanus (^male) . 

 See No. 329. 



Toes, three; crown, ])l:ick, marked with white; hark, Mark and ivhite. 



American Three=toed Woodpecker. 

 Banded=backed Woodpecker. 



Picoides americanus (female). 

 See No. 329. 



Section 2. The following species have four toes ; no trace 

 of red on crown or nape. 



Ear coverts, black; no 



white on inner web of two 

 middle tail feathers; mid- 

 dle of back, more or less 

 white, but not heavily 

 banded as in boreal is; 

 lower rump and upper 

 tail coverts, black. 



Hairy Woodpecker. 



Dryuhiites villosus (female). 

 See No. 324. 



