92 
THE CONDOR 
Vol. XIV 
there a young bird about a third grown, and one about the same size was seen 
next day at Lake John. July 21 Durand saw a hen with four chicks near Walden, 
and on the 22nd while on the road en route for Bufifalo Pass we saw two hens 
each with two fair sized chicks, about fifteen miles southwe.st of Walden. Many 
of these birds must winter about Walden, for there were piles of their old drop- 
l)ings everywhere in the sage brush near that place. 
22. Zenaidura macroura carolinensis. [Mourning Dove. This bird was 
common everywhere from the time I left Colorado Springs until near Log Cabin 
1’. O., after which we saw no more until about twelve miles south of Walden. 
A few were seen at about every place we visited in the North Park. It was seen 
at Steamboat Springs, and along the road in Routt and Grand Counties, and 
between Idaho Springs and Denver. One was seen on its nest in a cottonwood 
tree on Wild Cat Creek, June 3. 
23. Cathartes aura septentrionalis. Turkey Vulture. This species was 
seen on two occasions. May 23, about two miles east of Fondis, and June 14, 
near Owl Canyon, northwest of b'ort Collins. 
24. Circus hudsonius. Marsh Hawk. Marsh Hawks were not seen as 
frequently as 1 ^would have expected, but a few being noted, as follows : near 
Ramah, Mattison, about eighteen miles .south of Fort [Morgan, and three miles 
north of that place, at Steamboat S])rings, and ten miles .south of there. 
25. Buteo borealis calurus. Western Red-tail. This species was seen 
quite frequently, though I made but one note of it on the plains, and that was 
really from the Divide, near Elbert, where a pair were seen. The next occasion 
was July 17, two miles above Flome P. O., wdien we were getting well into the 
mountains. It was noted between that place and Chambers Lake, and at the lat- 
ter place : fifteen miles south of Walden ; near that place ; near Hell Creek ; at 
our Mt. Zirkel camp : at the Puiffalo Pass sawmill ; at Pmffalo Pass : Steamboat 
Springs and a few miles south. One perched on a fence post on the divide 
between Yampa and Egeria Park dropped a half-eaten Wyoming Ground Squir- 
rel (Citcllus clcgaiis ) as it flew off. One was seen on the Gore Pass road near 
Rock Creek. 
26. Buteo swainsoni. Swainson Hawk. This is more a bird of the open 
ground than the preceding, and seen more frequentl}^ on the plains. It was noted 
at Elbert and near there : two, presumably a pair, were seen at Cedar Point ; it 
was seen May 29 between Godfrey and Deer Trail ; May 30 we saw two recently 
killed birds at a ranch by the roadside ; Durand saw one hanging about the Ea.st 
Pawnee Butte; one seen near Briggsdale. Two or more were seen at Walden at 
various times: at this place 1 found where one had been eating a Citcllus elegans. 
I'hese large hawks must destroy many of these pests during the summer as in the 
North Park they seemed to hang about where the ground squirrels were most 
abundant. It was seen at Hell Creek and at Steamboat Springs . 
27. Archibuteo ferrugineus. Ferruginous Rough-leg. One seen be- 
tween Briggsdale and Ault, June 11. Several large hawks were seen while on 
the plains, flying too high for identification, .some of which may likely enough 
have been this species. July 22, in the North Park, between two forks of Grizzly 
Creek, a Rough-leg in the ordinary light phase was seen on the ground, and at 
the same time a very dark colored hawk was flying about overhead, which may 
have been a melanistic example of the same species, or possibly B. swaiusoiii 
It was too far away for any positive identification. 
