190 KEY TO TlIK BIRDS OF KASTEKN NORTH aMKKICA. 



FAMILY PICID^. 



WOODPECKERS. 



Group 1. Wing, less tlian 4.25 inches loug. See page 1 'J 1. 

 Group 2. \\ing, 4.2;') to 5.50 inelies long. See page 101. 



Section 1. Toes, three; no trace of red on crown or nape. See page 101. 



Section 2. Toes, four; no trace of red on crown or nape. See page 102. 



Section 3. Toes, four; more or less red on crown or nape. See page 10.?. 

 Group 3. Wing, 5..50 to S.OO inches long. See page 195. 

 Grou> 4. Wing, over 8.00 inches long. See page 19G. 



