114 Birds of Colorado 



with buffy ; outer tail-feathers brownish-grey, narrowly edged with 

 white ; under-parts white, neck and breast washed with ashy and 

 heavily streaked with black and buffy ; iris brown, bill greemsh- 

 brown, feet yellowish. Length 9-0 ; wing 5-40 ; tail 2-40 ; tarsus 1-0 ; 

 culmen l-l. 



In winter the ochraceous-buff of the upper-parts is replaced by 

 rufous, and the breast is heavily washed with bufEy ; the female is 

 slightly smaller — wing 5-10. 



Distribution. — Breeding in northern Siberia and Alaska, south in 

 winter through the United States, chiefly along the Mississippi Valley, 

 to Chili and Patagonia ; occasional in Europe. 



The Pectoral Sandpiper is only a migrant in Colorado in spring and 

 autumn. It is stated by Cooke to be common, but if so it seems to 

 have escaped the notice of most observers. Morrison observes that 

 he took five examples in La Plata co., and that it was found as high 

 as 13,000 feet ; it is common on migration at Barr (Horsey & 

 Kockwell) ; Miss Eggleston classes it as an irregular naigrant at Grand 

 Junction (Rockwell). These are the only definite notices of the 

 species. It is not represented in the Aiken collection, nor do Carter 

 or H. G. Smith seem to have come across it. 



White-nimped Sandpiper. Pisobia fuscicollis. 



A.O.U. Checklist no 240. — Colorado Records — Morrison 89, p. 167 ; 

 Cooke 97, pp. 65, 158 ; Henderson 03, p. 234 ; 09, p. 228. 



Description. — Male in summer — Above ashy-brown with conspicuous 

 dusky centres and rufous edges to most of the feathers ; wings and tail 

 dark brown ; the lateral tail-feathers rather paler ; the upper tail- 

 coverts white ; below white, the lower-nock, breast and sides faintly 

 washed with dusky and spotted and streaked with the same ; iris dark 

 brown, bill and feet dusky, the former rather reddish at the base 

 of the lower mandible. Length about 6-0; wing 4-C ; tail 1-9; 

 culmen -85 ; tarsus -90. 



The female is similar. 



Distribution. — Breeding in Arctic America chiefly north of Hudson 

 Bay, westward to the Mackenzie River ; south in winter through the 

 United States east of the Rocky Mountains as far as Patagonia and the 

 Falkland Isles ; occasionally in Europe. 



Like the previous species this Sandpiper pa&ses through Colorado 

 on migration, and is far from common. It has only been met with 

 in the plains east of the mountains, and is reported from Fort Lyon by 

 Thome and from Boulder co. by Henderson, while there is a pair in the 

 Aiken collection, killed May 17th, 1878, by Aiken on Horse Creek, 

 about forty miles east of Colorado Springs, on the plains. 



