SANDPIPERS. 



169 



summer, upper tail coverts white banded 

 with dusky; dark gray above spotted with 

 yellowish white; white beneath, streaked 

 and spotted on lower neck and banded on 

 sides, axillaris and under wing coverts with 



Fig. 139 



Wilson Plover, Young. 



dusky; winter and young not noticeably 

 different. Bill, black; feet and legs, yellow. 

 Occurs on marshes and mud flats, where it 

 makes itself conspicuous, especially in flight, 

 by its loud, clear whistle which consists of 

 three or four notes and is frequently uttered; 



