228 UNIVERSITY OF COLORADO STUDIES 



240. Pisobia fuscicollis — White-rumped Sandpiper. 

 Reported as migrant on plains by Rowland. 



254. Totanus melanoleucus — Greater Yellow-legs. 

 Common on plains in migration. 



255. Totanus flavipes — Yellow-legs. 

 Common on plains in migration. 



256. Helodramus solitarius — Solitary Sandpiper. 



One taken by Felger at Pennsylvania Lake, altitude 8,500 feet, August 27, 1903. 



263. Actitis macularia — Spotted Sandpiper. 



Common summer resident, reaching 10,000 feet by the last of May according to 

 Gale, who places its nesting range at from 8,000 to 10,000 feet, though likely it nests 

 sparingly at lower altitudes. Six nests in Gale collection, all taken in June, running two, 

 four and five eggs in a set. 



264. Numenius americanus — Long-billed Curlew. 



Gale noted it in his manuscript list of summer residents, both for plains and mountains, 

 but without definite records. Probably does not get far back of the foothills. He collected 

 several sets of eggs, but his notes omit localities. Cowie says it is not infrequent on the 

 plains lakes. 

 273. Oxyechus vociferus — Killdeer. 



Abundant summer resident on plains, less abundant in mountains. Earliest spring 

 records I have for the county are March 19 (Gale), March 5 (Rockwell) and March 29 

 (C. Juday). H. G. Smith says he saw three just east of Boulder on December 31, 1904. 

 [281. Podasocys montanus — Mountain Plover. 



Gale notes young birds "on the dry plains," sent a skin to Washington and discusses 

 nesting habits, but does not make it clear whether his observations occurred in the county 

 or not.] 

 289. Colinus virginianus — Bob-white. 



Recorded on plains in 1889 by Gale. As some have been introduced it is difficult 

 to ascertain whether it was a native species here. Common now in favorable localities. 

 297. Dendragapus obscurus — Dusky Grouse. 



Resident in mountains, much less common than formerly. Nests from higher foot- 

 hills to about timberline. A slight vertical migration occurs among the birds of the 

 higher region in severe winter weather. 

 304. Lagopus leucurus — White-tailed Ptarmigan. 



A bird of the alpine region, nesting above timberline, but said to come "as low as 

 8,500 feet and quite seven miles from the range" in winter (Gale). Not common except 

 in isolated places. 

 [308b. Pedicecetes phasianellus campestris — Prairie Sharp-tailed Grouse. 



Have no definite record for the county, but Gale inserts it in a list of birds wintering on 

 the Boulder County plains, and discusses its nesting habits without locality. Probably 

 formerly occurred here, but not now found.] 

 312. Columba f asciata — Band-tailed Pigeon. 



Noted in a gulch near Gold Hill by Gale on the following dates: June 8, 1887; June 

 8, 1888; June 9, 1889; June 2, 1890. Always in the same place and no other records. 



