4o8 Field Museum of Natural History — Zoology, Vol. IX. 



Genus EREUNETES Illiger. 



1 19. Ereunetes pusillus (Linn.). 

 Semipalmated Sandpiper. 



Local name: Peep. 



Distr.: Eastern North America, breeding north of the United 

 States; south in winter to the West Indies and South America. 



Adult in summer: Heavily marked with dark brown and tawny 

 on the top of the head and back; forehead, whitish; under parts and 



Semipalmated Sandpiper. 



throat, white; breast, mottled with grayish; belly, white; toes, with 

 small web. 



Adult in winter: Upper parts, grayish, 

 mottled with brown on the head, and the 

 feathers showing dark brown, edged with 

 white on the back; throat, white; breast, 

 very faintly washed with gray, which is some- 

 times very indistinct; belly and under tail 

 coverts, white; toes, with small web. 



Length, 6; wing, 3.75; tarsus, .75; bill, 

 .80. 

 Abundant in Illinois and Wisconsin in May and September during 

 the migrations. Occasionally birds remain during the summer; but 

 there is not the slightest evidence that these ever breed. 



