KEY TO FAMILIES. WATEU BIRDS. 



17 



GROUP 4. 



Toes, four; toes, not full webbed; small webs between 

 toes at base, or , toes entirely without webs; hind toe, 

 sometimes small. 



Section 1. Hind toe, raised above level of front toes. 



Avoeet. Avocet. 



Tarsus, over 3.50 inches long; bill, curved upward or straight. 



Family RECURVIROSTRID/E. Avocets. 



See page 106. 



Hiud toe, higher than front toes; tarsus, less than 3.50 inches long; middle toe and claw 

 together shorter than bill, except a few of the small species, which have middle toe and claw 

 equal to or longer than bill; but all such have the belly and under tail coverts pure white in 

 most plumages. Family SCOLOPACID/E. Snipe, Curlews, Sandpipers, etc. 



See page 107. 



Hind toe, higher than front ones ; lower 



back and rump, white, with black band. 



Family APHRIZID/E. Turnstones. 



See page 129. 



