190 KEY TO THE BIRDS OF EASTERN NORTH AMERICA. 
FAMILY PICID. 
WOODPECKERS. 
Group 1. Wing, less than 4.25 inches long. See page 191. 
Group 2. Wing, 4.25 to 5.50 inches long. See page 191. 
Section 1. ‘Toes, three; no trace of red on crown or nape. See page L191. 
Section 2. ‘Toes, four; no trace of red on crown or nape. See page 192. 
Section 3. ‘Toes, four; more or less red on crown or nape. See page 198, 
Group 3. Wing, 5.50 to 8.00 inches long. See page 195. 
Group 4. Wing, over 8.00 inches long. See page 196. 
