54 
BIRDS OF COLORADO. 
137. Anas americana. Baldpate. 
Summer resident; tolerably common, locally; in migration, 
commonly distributed all over the State and occasionally in the 
fall migration is locally abundant. Breeds mostly in the north, 
but a few remain behind to breed on the prairies of Kansas and 
eastern Colorado, while Dr. Coues found them breeding in large 
numbers in North Park at an altitude of about 8,000 feet. (B. 
N. O. C. II. 1877,51.) 
139. Anas carolinensis. Green-winged Teal. 
Summer resident; common, locally; in migration, abund- 
ant. One of the earliest ducks to migrate in the spring and on 
the plains one of the most abundant. The bulk breed farther 
north and it is a rare breeder on the plains, but among the 
mountains and mountain parks it is not uncommon through the 
summer. Henshaw found it in the San Tuis Valley breeding 
in considerable numbers June 24, but not yet through laying. 
Morrison reports its breeding near Fort Lewis in southwestern 
Colorado, and Kellogg found it as a common summer resident 
of Estes Park. 
140. Anas discors. Blue-winged Teal. 
Summer resident, common; in migration, abundant. What- 
ever has been given above concerning the Green-winged Teal 
would apply equally to the Blue-winged. 
141. Anas cyanoptera. Cinnamon Teal. 
Summer resident; common. A western species abund- 
ant over all the country west of the Rocky Mountains. Many 
cross the range and are found along the eastern foothills; farther 
east they are rare. H. G. Hoskins writes that he found one at 
Beloit, near the eastern boundary of the state, on October 27, 
1895, and they have several times been taken in Kansas. There 
is no record of their breeding far out on the plains of Colorado, 
but judging from their known habits it is probable that a few 
breed locally over much of the country from the mountains to 
Kansas. In north central Colorado, at the western edge of the 
plains, a scattered pair or two can be found breeding in most of 
the sloughs or marshes. West of the range, Henshaw found 
them breeding in southern Colorado in June and Dr. Coues 
notes them as very abundant breeding at small lakes in North 
Park. They are among the later migrants of the ducks arriv- 
ing in northern Colorado early in April, and by the middle of 
June have full clutches of eggs. 
142. Spatula clypeata. vShoveller. 
Summer resident ; common, locallv; in migration, abund- 
ant. This duck inhabits the whole of North America and is 
