130 University of California Publications in Zoology. (VoL. 
Hylocichla guttata sequoiensis (Belding). 
Sierra Hermit Thrush. 
Sierra hermit thrushes were common only in the caions among 
the northern spurs of San Gorgonio peak. They were in full 
song among the tamarack pines and snowbanks around Dry lake 
in June of each year. This mellow tinkling song to me sounds 
cold and lonesome, and yet it always brings a thrill of pleasure. 
It was heard to best advantage at the higher altitudes where 
quiet reigned. In the lower canons the noise of the brooks drowns 
most other sounds; at least spoils their impressiveness. 
Many nests of this species, both old and new, were found in 
the cafions of Fish creek, Lost creek, and South Fork, above an 
altitude of 6300 feet. They were all built in small firs or cedars 
usually growing in the shade of taller trees not far from the 
streams. The nests varied from eighteen inches to five feet in 
height above the ground, the average being about three feet. A 
nest found in Fish creek canon, 7000 feet altitude, June 16, 1905, 
was three feet above the ground near the top of a diminutive fir 
tree growing a yard from the stream. It contained four eggs in 
which incubation was nearly complete. 
This nest may be deseribed as typical of all those examined. 
It was snugly ensconced against the main stem and was sup- 
ported by horizontal branches. It was a compact structure 
deeply cup-shaped. The inside diameter was 2.40 and the depth 
1.65 inches. Externally it measured 4 x 4.75 inches. It was 
composed largely of pine needles and weathered grass stems, and 
the cavity was lined with strips of cedar bark and fine dry root- 
lets. Nests found June 18 and 30, 1905, in South Fork canon 
held 3 and 4 half-grown young, respectively. In 1906, on June 
12, I found a set of five considerably incubated eggs of the Sierra 
hermit thrush in the lower South Fork canon, and on June 25 
a set of four moderately incubated eggs in the same canon. These 
egos are plain unspotted Nile blue and measure .90.65, .92> .66, 
90<-65, 91 <.66, 89167 = (86564, (89X67) 287 <66590><68: 
In 1907, on June 15, in the same canon, I found a nest con- 
taining two eggs, with the parent sitting. The next day there 
were three, which proved to be the full complement in this ease. 
