BREWSTER: BIRDS OF THE CAPE REGION, LOWER CALIFORNIA. 211 
with rusty ochraceous, the buffy of the jugulum exceptionally rich, and the 
rufous tinge on the flanks, wings, tail, and upper parts generally, deeper and 
more pronounced than in any of the specimens in my collection from British 
Columbia or Washington. If Mr. Frazar’s birds were, as both he and I believe, 
breeding or about to breed in the region where they were obtained, they furnish 
an interesting case of interrupted distribution, for true wstulata is not known to 
occur in summer in the southern or central portions of California, where it is 
replaced by the slightly paler, grayer form H. wu. oedica. 
The Russet-backed Thrushes found by Mr. Frazar on the Sierra de la 
Laguna in May were all met with in rather open oak and pine woods near 
water, where they were apparently settled and preparing to breed. None were 
seen elsewhere save at Triunfo, where a single female was shot on June 13 in 
a shaded arroyo. This bird was unmistakably incubating, and must have had 
a nest and eggs somewhere in the neighborhood. These are the only known 
instances of the occurrence of the Russet-backed Thrush in the southern part 
of Lower California, but near the northern boundary it was “ seen at Hansen’s 
as late as May 14, 1884, by Mr. Belding, and after the middle of May southeast 
of San Rafael.”? Mr. Anthony found it as late as May 25 on San Pedro 
Martir, where, he thinks, ‘‘ it is possibly a resident of the pines, but those 
taken showed little enlargement of the ovaries, and it is more probable that 
they were belated migrants.” ? 
Hylocichla guttata (Patt.). 
ALASKA HERMIT THRUSH. 
(2) Hylocichla unalascae Ripeway, Proc. U. S. Nat. Mus., V. 1883, 533, footnote, 
part (Cape St. Lucas). 
Hylocichla unalascae BEupinG, [bid., VI. 1885, 346, part (Casa Pintada, Victoria 
Mts., Feb. 17, 1883). 
Turdus aonalaschkae Bryant, Proc. Calif. Acad. Sci., 2d ser., IT. 1889, 319, part 
(Victoria Mts.). 
Soon after concluding a study of the smaller western forms of the Hermit 
‘Thrush, some of the results of which are given in this paper under Hylocichla 
guttata nana, 1 asked Mr. Oberholser, who had seen my specimens and was 
aware of the changes which I had decided to make in the names of two of the 
forms, to carefully examine all the skins in the National Museum from the 
Cape Region, and let me know his opinion regarding them. In reply to this 
request, he wrote me, under date of April 30, 1902, as follows: “I have been 
unable to find any of Xantus’s specimens, . . . but discovered three collected 
by Belding, as follows: — 
“One from Casa Pintada, Lower California, February 17, 1883, is unques- 
tionably guttata. 
1 Bryant, Proc. Calif. Acad. Sci., 2d ser., II. 1889, 319. 
2 Zoe, IV. 1893, 246. 
