1908] Grinnell.—Biota of the San Bernardino Mountains. * 129 
were nearly full-grown and had left the nest on July 4. The 
other nest in the same canon contained four considerably in- 
cubated eggs. This was similar in structure to the one described 
above, but was only four feet above the level canon bed, in a 
niche in the face of a rock. Still another nest was found June 
17, in the same neighborhood, similarly constructed and located. 
This contained four eggs in which incubation was far advaneed. 
In 1906, two sets of four eggs each were found on the 22nd and 
24th of June, respectively, the first well incubated, the second 
fresh. One nest was in the face of a dirt bank and held in place 
by a tangle of roots. This was more elaborate, being composed of 
twigs and bark, lined with fine dry grasses; but, lacking any 
system of weaving or interlacing, it was so fragile as to fall to 
pieces readily when handled. The remaining nest was on a hill- 
side, under an overhanging rock, and shaded by a young fir, and 
was constructed as the last. 
The four sets of eggs taken, conform to one general type of 
coloration, though there is some variation. All the eggs of each 
of the four sets are practically identical among themselves.. Two 
extremes of coloration may be described. In one style the ground 
color is white, with the palest possible tint of grayish-blue. The 
markings are so profuse as nearly to obscure the ground, doing so 
completely about the larger ends. These markings vary from 
brick red, through an unbroken series of tints to very pale laven- 
der; but a vinaceous tint prevails. The markings are in the 
nature of blotches and finer dots and points, often blurred to- 
gether. In the other style of egg the ground is white with a 
decided pale blue tint, spattered with blotches and spots of 
lengthwise trend. These are thickest at the large end, bold and 
distinet, not running together, and are in color lavender, vi- 
naceous, brick red and burnt sienna. Sixteen ege@s average in 
inches, .94>.70, extremes being .90.68 and 1.04.71. 
At Bluff lake in July, 1905, the conspicuously spotted young 
of the solitaire were taken, but the species could not be considered 
common there. <A single individual was seen in a clump of silver 
firs on the north side of Gold mountain, August 26. Ten speci- 
mens of the solitaire were obtained. 
