BIRDS OF COLORADO. 
57 
of the lakes near Fort Collins. J. B. Sibley shot a male and 
female on McKay Lake near Denver, November 13, 1892. 
(Deanef Auk, XII. 1895, 292.) 
155. Histrionicus histrionicus. Harlequin Duck. 
Resident; not common. This is regularly a northern 
species, breeding far north and coming into Colorado in the 
winter as it does over the Mississippi Valley to the eastward. 
But a few remain to breed at about 10,000 feet in the mountains 
more particularly of western Colorado. C. F. Morrison says: 
“I believe it breeds in both the San Juan and La Plata coun- 
ties. * * >i< j liave often seen it through the winter below 
Fort Lewis 011 the Ute reservation together with G. islandica. ” 
(O. & O. XIII. 1888, 165.) F. M. Drew gives it as breeding 
from 7,000 to 10,000 feet. (x\uk, II. 1885, ii.) 
163 Oidemia americana. American Scoter. 
Winter visitant ; rare. This and the next two are “Surf 
Ducks” that breed far north and come south in the winter, 
principally along the coast, but a few visit the larger inland 
waters. One would suppose them out of place in arid Colorado, 
but professional hunters expect to see a few of them each year. 
An American Scoter is in Mrs. Maxwell’s collection and G. F. 
Breninger writes that he found a dead one near Fort Collins. 
165. Oidemia deglandi. White-winged Scoter. 
Winter visitant; rare. G. F. Breninger reports the cap- 
ture of three specimens, one of which, taken November 3, 1890, 
is now in the cabinet of the State Agricultural College at Fort 
Collins. H. G. Smith reports four specimens as follows : one at 
Marston’s Lake, near Denver, October, 1887 ; one on Lee’s 
Lake, near Fort Collins, October 23, 1888; one taken bv Wm. 
G. Smith, at Loveland ; one at Sloan’s Lake, near Denver, 
October 16, 1890. (Nidologist, III. 1896, 48.) 
166. Oidemia perspiciMata. Surf Scoter. 
Winter visitant ; rare. Prof. Wm. Osburn writes that he 
saw one in the collection of Wm. G. Smith, taken at Loveland. 
H. G. Smith says that one was taken at Marston’s Lake, near 
Denver, October, 1887, in company with the specimen of O. 
deglandi mentioned above. (Nidologist, III. 1896, 48.) 
167. Erismatura jamaicensis. Ruddy Duck. 
Summer resident ; common. Occurs on both sides of the 
range in migration and during the breeding season is not un- 
common in the mountains up to 10,000 feet. East from the 
mountains it becomes less common in summer until along the 
