1926} Swarth: Birds and Mammals from the Atlin Region 143
1924, p. 368) strongly support the validity of the race. Compared
with series of specimens from more northern points in Alaska, assumed
to be typical hudsonicus, they exhibit, conclusively as it seems to me,
the color characters ascribed to columbianus by Rhoads (loc. cit.) and
by Ridgway (1904, p. 414).

Regulus satrapa olivaceus Baird. Western Golden-crowned Kinglet

Seen but once, a single bird near Atlin on May 29.

Regulus calendula calendula (Linnaeus). Ruby-crowned Kinglet

Seen at Carcross on May 24. Found in small numbers throughout
the lowlands of the Atlin region during the summer and in rather
greater abundance after the southward migration began. The first
broods of young appeared on July 16. Seen daily during the early
part of September, and one bird was seen at Carcross on September 24.
Four specimens were collected (nos. 44984-44987).

Myadestes townsendi (Audubon). Townsend Solitaire

Breeds in small numbers about Atlin, mostly on the partly open
mountain sides just below timber line. First seen on May 29, the last
September 1. One specimen collected, a juvenal male, June 30
(no. 44988).

Hylocichla ustulata swainsoni (Tschudi). Olive-backed Thrush

Breeds in fair abundance in the poplar and willow woods of the
lowlands. Arrived June 4; last seen August 29. Nine specimens were
collected (nos. 44989-44997). These, together with others from pre-
vious expeditions to the Stikine and Skeena valleys, comprise a series
of forty-one specimens of olive-backed thrush from northern British
Columbia now in this museum. This series throughout exhibits the
grayish dorsal coloration described by Oberholser (1898, p. 304) as
the principal character of Hylocichla ustulata almae. I would be
inclined to recognize that subspecies were it not for the fact that the
same coloration occurs in series from eastern localities, among the more
numerous olivaceous-backed birds that are supposed to represent
typical swainsoni. The name almae may well rest in abeyance for
the time being until a better understanding is reached of the meaning