132 Birds of Colorado 



In -winter and juvena] plumage very similar to the above, but with 

 less yellow ; below whitish, streaked and mottled on the sides of the 

 neck and body and on the breast with dusky, but the axillaries always 

 ashy-grey. 



Distribution. — Breeding chiefly on the Barren Grounds from Hudson 

 Bay to northern Alaska, south in winter to the Argentine Pampas, 

 passing mostlj' down the Atlantic coast and Mississippi Valley. 



There is very Uttle information about the occurrence of the American 

 Golden Plover in Colorado. Ridgway included it in his list of Colorado 

 birds, and Cooke states that a few pass in the spring and fall over the 

 plains of Colorado below 5,000 feet. Hersey and Rockwell find that 

 it is not uncommon at Barr during migration. There is no Colorado 

 example in the Aiken collection. 



Genus OXYECHUS. 



Bill rather slender ; tail long, at least half the length of the wing 

 graduated an inch or more ; pliunage with two black bands across the 

 chest. 



One American species. 



Killdeer. Oxyechus vociferus. 



A.O.U. Checklist no 273— Colorado Records— Allen 72, pp 152, 159 ; 

 Aiken 72, p. 209 ; Scott 79, p. 96 ; Tresz 81, p. 243 ; Drew 81, p. 142 ; 

 85, p. 15 ; Nash 83, p. 225 ; Allen & Brewster 83, p. 197 ; Beckham 

 85, p. 143 ; 87, p. 124 ; Morrison 88, p. 139 ; 89, p. 181 ; Lowe 92, 

 p. 101 ; McGregor 97, p. 38 ; Cooke 97, pp. 18, 68, 201 ; Dille 03, p. 74 ; 

 Henderson 03, p. 234 ; 09, p. 228 ; Warren 06, p. 19 ; 08, p. 20 ; 09, 

 p. 14 ; Marlonan 07, p. 156 ; Rockwell 08, p. 160 ; Hersey & Rockwell 

 09, p. 116. 



Description. — Adult — Above brown, with an ohve tinge, a white 

 frontal band running back through the eye, bordered above by black ; 

 a white collar also bordered by black ; rump and upper tail-coverts 

 rufous ; wings dusky with a good deal of white on the secondaries 

 and coverts ; tail dusky, rufous and white ; below white, with two black 

 bands across the chest ; iris brown, eyelids orange-red or scarlet, bill 

 black, legs pale flesh. Length 9-5 ; wing 6-4 ; tail 3-75 ; culmen -8 ; 

 tarsus 1-3. 



The sexes are aUke ; young birds are rather duller above, and the 

 feathers margined with rusty and the black bands are greyish. 



Distribution. — Breeding throughout temperate North America from 

 British Columbia and Ontario southwards ; wintering in the Gulf 

 States and southern CaUfornia south to northern South America. 



