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THE CONDOR 
Vol. XVII 
limbs of a spruce tree, the latter about twenty-five feet high, and with the 
trunk ten inches in diameter at the base. The nest was placed close to the 
trunk, at an elevation of twelve feet. It was composed outwardly of dried 
spruce and pine twigs, interwoven with dried grasses and cottonwood down. 
The lining consisted chiefly of finer grasses, with the inner walls scantily 
padded with dry bearded moss of a dark brownish color. The nest measures 
iy 2 inches in width, and 2i/ 2 inches in depth, with a cavity of 3% inches across 
the top, and 1% inches deep. The eggs, two in number, are both of a pearl 
grayish ground color, with a few faint pale blue markings, and with conspic- 
uous spots of various shapes, of bluish slaty black, intermixed with a few clay 
colored spots. The eggs measure : 24x17.3 and 24.2x17.5. 
Nest no. 2. This nest was well hidden on an outer branch of a spruce tree 
about eighteen feet above the ground. Of the four nests taken, this was the 
only one not placed against the tree trunk. It is similar to number one, both in 
size and structure. The eggs, five in number, were perfectly fresh. They are 
of the usual pearl grayish color, with small spots of bluish slaty black and of 
pale blue, with the clay colored spots almost lacking. The eggs measure : 
22x17, 22x17, 22x17.3, 22.5x17.2, 22x17. (See fig. 50.) 
Nest no. 3. Situated in a small spruce tree, eighteen feet up, and placed 
against the tree trunk. Nest similar to number one, both in structure and 
measurements. The nest contained four fresh eggs of a pearl gray color, 
spotted with bluish slaty black, pale blue, and clay colored markings, mostly 
toward the larger end. The eggs measure : 24x17, 23x17, 23.5x17, 23.3x17. 
Nest no. 4. This nest was situated close to the trunk of a small slender 
spruce tree, fifteen feet up. It is similar to number one, differing only in 
having a scant lining of white fur of the Northern Hare ( Lepus americanus 
macfarlanei) . The nest contained five fresh eggs, of a pearl grayish color, 
spotted and blotched with blue slate, and with obscure pale blue markings, 
mostly toward the larger end. This set is not marked as heavily as any of the 
others. The eggs measure: 24.5x17.3, 25x17.3, 24.5x17, 25x17.5, 25x17. (See 
fig. 51.) 
Victoria, British Columbia, Canada, April 20, 1915. 
NOTES ON SOME BIRDS OF SPRING CANYON, COLORADO 
By W. L. BURNETT 
S PRING CANYON is a small opening in the first range of foothills seven 
miles southwest of Fort Collins. Viewing it from the standpoint of a 
mammalogist, this canyon has always been an interesting spot to me. 
While no systematic study of the birds found in this vicinity has been made 
by me, the following notes have been picked up from time to time. A half day 
or day now and then has been spent at the canyon, with the collection of small 
mammals the main object of the trips. Of such specimens we have taken some 
twenty species or subspecies, in the canyon proper and just outside. The 
place was named from a large spring that in years past flowed just at the en- 
trance of the canyon, in early days a favorite camping spot for emigrants, as 
the old California trail ran nearby. Several years ago, a mighty flood rushed 
