112 



KEY TO THE BIKUS OF EASTERN NORTH AMERICA. 



Section 4. Toes, four, without web; bill, over 1.10; and 



less than 1.90. 



Winter. 



Bill, decurved near tip; one or more of inner secondaries, 

 almost entirely white ; upper tail coverts, not ichite, barred with black ; 

 legs and feet, black. Spring birds have black on the belly, and 

 back, rufous brown and black. Fall birds have the belly white and 

 back gray. Tringa alpina pacifica. Red=backed Sandpiper. 



American Dunlin. 

 See No. 198. 



Tringa alpina pacifica. 



