96 University of California Publications in Zoology. (V5 
nest and one fresh egg, so that possibly two broods are reared in 
a season. 
The nests were all on the ground. One, found June 17, in 
the black oak belt above Fish creek was built far back under the 
end of a log on a hillside, so that no part of it could be seen from 
any viewpoint. I flushed the bird casually by stepping on the 
log. Most nests were in depressions in the turf under overhang- 
ing grass tufts, preferably on slopes. A nest found June 12, 
1906, in the canon of the South Fork is typical of the usual style. 
It consisted outwardly of weathered leaves, bark strips, and grass 
blades, in quantity to suit the depression in the sod where it was 
located. Inwardly it consisted of fine straw-yellow grasses and 
a few horse hairs. The inner cavity of the nest was 1.25 inches 
deep and 2.22 in diameter. 
The eges of the Sierra junco seem to be subject to no great 
amount of variation in either size or color. The set taken with 
the above described nest is colored as follows: The ground- 
color is white with palest tint of Nile blue; the markings vary 
in color through various tints from hazel to vinaceous; these 
markings are spread all over the eggs, but are agglomerated into 
a denser belt about the large ends, where they run together, giv- 
ing a blurred effect, especially with the deeper-set dots and 
blotches of vinaceous. Two sets of eggs measure in inches as 
follows: .80.62, .79X.61, .80.61, .79.61, and . 76.58, 
Hh <ey ><a), ofl <8) 
Juncos were noted in August sparingly around Bear lake, 
and on the north side of Sugarloaf clear to the summit. A few 
were noted on the north side of Gold mountain and through 
Holcomb valley, August 26, 1905, but not farther down on the 
desert side. Sierra juncos were always common in the tamarack 
pine belt around Dry lake, and they were often seen up the 
slopes toward San Gorgonio peak. Several parties of adults and 
full-grown juveniles were seen about the snowbanks on the sum- 
mit of this peak July 16, 1906; and on June 19, 1907, a male was 
perched on the tip of the rock monument on the very summit, 
11,485 feet altitude, smging repeatedly and vigorously. The 
species was also observed on the summit of San Bernardino peak, 
10,630 feet altitude, July 12, 1905. Forty-eight skins of the 
Sierra juneo were obtained. 
