Allen and Brewster on Colorado Birds. 
1883.] 
151 
of White-throated Sparrows hopping about in a street, quite near 
a house. 
This, I think, will suffice to show the freaks of some of our 
winter birds. Although our birds are pretty well known, yet, 
since they indulge in irregular movements in different seasons, 
much close observation is still needed to make us fully con- 
versant with their modes of life. 
LISTS OF BIRDS OBSERVED IN THE VICINITY 
OF COLORADO SPRINGS, COLORADO, DURING 
MARCH, APRIL, AND MAY, 1882. 
BY J. A. ALLEN AND WILLIAM BREWSTER. 
[The field notes of this List are based on the joint observations of 
Mr. Brewster and myself. The technical notes, in smaller type, are 
entirely by Mr. Brewster. — J. A. A.] 
The area covered by the present list has a radius of about six 
miles, Colorado Springs being the central point. It therefore 
embraces the plains immediately adjoining the town, Austin’s 
Bluffs to the northward, the Garden of the Gods, and that por- 
tion of Bear and Cheyenne Creeks between the base of the 
mountains and their junction with Fountain Creek. The places 
chiefly visited were the wooded bottoms of the two first-named 
creeks, and Austin’s Bluffs. The broken ridges of the latter are 
scantily wooded with pines, and the intervening narrow ravines 
by oak scrub. 
Excursions were made almost daily from April 7 to May 23, with- 
in which dates is included almost the whole period of the spring 
migration, few birds arriving either before the first date or after 
the second. The senior author also spent the month of March 
at Colorado Springs, and the summer at a ranch on West Monu- 
ment Creek, about twelve miles northwest of Colorado Springs. 
A few notes are accordingly included respecting the occurrence 
of certain species of special interest from the fact that their breed- 
ing range does not extend below the base of the foothills. The 
