76 University of California Publications in Zoology. |Vou.5 
Several black phoebes were seen along the shores of Bear lake 
the last of July, 1905, and two at Baldwin lake, August 8; also 
a single individual at Cushenbury springs, August 11, and one 
at the north base of Sugarloaf, August 21. 
Nuttallornis borealis (Swainson). Olive-sided Flycatcher. 
As we entered the mountains we met with the first olive-sided 
flycatcher in the Santa Ana canon, 2500 feet altitude, along with 
the first big-cone spruces. From this point up to the head of the 
Santa Ana the characteristic call-notes of this species were almost 
constantly within hearing distance. It seemed to be a bird of 
the canons and did not appear to range far up the sides of the 
mountains. The highest we saw the species was at Dry lake, 
9000 feet altitude, where a nest was found June 23, 1906. There 
were three shehtly incubated eggs, and these together with the 
nest and female parent were preserved. The nest was on an 
outstretching tamarack pine limb twenty feet above the ground 
and over a steep creek. bank. It is a very shallow, somewhat 
frail-looking affair, more like a tanager’s than a wood pewee’s, 
and consists externally of coarse pine twigs, within which is a 
layer of fine plant stems; the lining is of long bark ravelings 
and the finest plant stems. The eggs are striking in appearance, 
being deep cream buif in ground color, with a conspicuous ring 
of blotches and spots around the large ends. These are of burnt 
umber, hazel, clay color, and vinaceous buff. The eges measure: 
se) >< ofA, BE SK ofM0), EE SK {ohel- 
Near the mouth of the South Fork a nest was located twenty- 
five feet above the ground at the extremity of a lower drooping 
branch of a yellow pine. On July 10 it contained three half- 
fledged young. 
In the vicinity of Bluff lake, 7500 feet, in July, 1905, this 
flycatcher was fairly numerous and young were noted. The 
species was still there August 29. On the north side of Bear lake, 
in a clump of tamarack pines, a pair of olive-sided flycatchers 
were seen July 31; and a specimen was taken on the north side 
of Sugarloaf, 8000 feet altitude, August 22. Eleven examples 
of this species were taken. 
