20 



B, Toes three (without hind toe), except Kittiwake 

 (p. 50). 



Figure 12. 



Auks, Murres, etc p. 45. 



II. Feet Partly Webbed — Webs reduced to scallops, bordering flaps, or 

 small webs at base of toes. Toes four, except as otherwise noted. 



C, Tarsus much flattened; webs as shown. 



Figure 13. 



Grebes p. 42. 



D, Bill extending on forehead and forming 



frontal plate. 



Figure li. 



Coot p. 90. 



E, Small birds; bill long and slender; toes 



three or four. c^^^ 



f, Bill without hard terminal enlargement; 



toes four, except Sanderling (p. 97). 



Shore Birds — Phalaropes, Snipe, Sandpipers, Plover p. 90. 



/ 



g. Bill with hard terminal enlargement; ^^ 1 ^^^-^^^ % 



toes three, except Black-belUed ^<::^ ^H f*" 



Plover (p. 103). ^, 



Figure 16. 



Flover p. 1 02. 



