110 
THE CONDOR 
Vol. XV 
The nests, with one exception, have lieen placed on horizontal limbs of a dis- 
tance of from five to fifteen feet out from the trunk of the tree, and from seven 
to thirty feet high. On July 15, 1907, a nest containing young just hatched was 
found placed about seven feet up, and in, next to the body of a small, gnarly, dead 
c^pruce, with the stub of a limb and a few small twigs the only support. In all 
cases tlie nc.sts have been composed of the same materials, and alike in structure. 
ITom a hasty glance they seem light and fiimsy ; lint as a matter of fact, they are 
quite compact. Tlie small under platform does not exceed much in size the nest 
]iro]ier, or heavy lining, and is built of the small dead twigs of the mountain ma- 
])lc, willow, or pine, according to location. On top of this is placed coarse weeds 
and straws, into v.diich is worked a fine, wire-like weed, of the pre^vious year's 
growth, until finally the lining proper consists of [his weed altogether. It is 
quite remarkable how dense and well confirmed this stiff and brittle v.dre-like 
weed becomes. Of course at tbe time the nest material is gathered it is still damp, 
and flexible : for it is secured from tbe few sipots here and there that arc bared of 
the snow on the sunny exposures. Invariably the nesting site cbosen is in a lone 
tree on the edge of the timber, on or near the point of a mountain always having 
a good outlook. 
The earliest date of the finding of a completed nest is May 25, the latest July 
T. The lading of eggs is commenced from two to ten days from the time when 
the nest is completed. Three seems to be the common complement; in one in- 
stance, only, was a nest found containing four young. The earliest date of the 
finding; of young in the ne.st is July 12, then about three days old. The latest date 
is August 20, with young ready to fly. Upon inquiry at several of the mines 
which continue work throughout the entire winter, we are told that this Grosbeak 
is a constant resident. The elevation of these mines varies from 7,000 to 8,500 
feet. 
NOTES ON SO^IE MESA COUNTY, COLORADO, BIRDS 
By EDWARD R. WARREN 
T he LAvST of April and first half of May, 1912, I spent in western Mesa 
('ounty, Colorado, collecting. Some birds not before recorded from the 
County were collected, and some observations made on other species are 
herewith recorded. The only list we have of Mesa County birds is Rockwell’s 
“Annotated List of tbe Birds of Mesa County, Colorado,” in The Condor, July, 
1908. The first portion of my time was .spent at Mack, ten miles east of the 
Utah line, and the latter part at th.e Sieber Ranch, on Little Dolores Creek, twen- 
ty miles westward from Grand Junction. 
Tyraniius verticalis. Arkansas Kingbird. First seen near Mack, April 2(3, 
and others the first week in May. Also seen at Sieber Ranch May 12. and com- 
mon in the town at Grand Junction, May 15-16. 
Tyrannus vociferans. Cassin Kingbird. Common at Sieber Ranch IMay 10- 
14, decidedly outnumbering the preceding species at this place. I have men- 
tioned these two species, as my friend Rockwell seemed a little in doubt about 
their relative abundance and distribtitiou, and any additional records will help 
clear the matter up. 
Empidonax griseus. Gray Flycatcher. Two were collected near Mack, April 
24 and 26, and one at the Sieber Ranch, May 10, the first record for the County. 
