154 SHORE BIRDS. 



with buff above. Young more rusty above 

 and more buff below; rump and upper tail 

 coverts always dark. For comparison see 

 White-rumped Sandpiper. Note, a rolling 

 whistle, often given harshly and gratingly. 

 Flight, when startled swift and erratic, 



Fig. 124 



Ruff. 1-5. 



something like that of Wilson Snipe. 

 Occurs with other Sandpipers about sloughs 

 and among the grass of salt marshes where 

 it has the habit of squatting to hide when 

 approached. Breeds in the Arctic of N. A. 



