1926] Swarth: Birds and Mammals from the Atlin Region 145

The first young out of the nest was seen June 11. During August
robins were gathered in noisy flocks, twenty or thirty together,
preparatory to departure for the south.

Four specimens were collected (nos. 45009-45012), one adult male,
two in juvenal plumage, and one adult female taken August 16, which
had then finished the annual molt.

Ixoreus naevius meruloides (Swainson). Northern Varied Thrush

The varied thrush apparently does not breed in the Atlin region,
for it was encountered nowhere during the summer months. First
appeared on September 5, when several were seen, evidently migrating
southward. A few others were noted, near Atlin and at points between
Atlin and Teslin, the last on September 21. One specimen was col-
lected, a female taken September 5 (no. 45013) ; it is typical of the
subspecies meruloides.

Sialia currucoides (Bechstein). Mountain Bluebird

A fairly common species and with a predilection for human
habitations, whether occupied or abandoned. Seen at Carcross, May 22,
and at Atlin when we arrived. Young birds were flying about during
the second week in July. The bluebirds linger to a later date than
most of the summer visitants. I saw a flock of fifteen at Carcross on
September 24.

CHECK LIST OF THE MAMMALS

Sorex personatus personatus I. Geoffroy
. Sorex obscurus obscurus Merriam
Neosorex navigator navigator Baird

. Mustela cicognanii richardsonii Bonaparte
Gulo luseus (Linnaeus)

Vulpes alascensis abietorum Merriam
Canis lestes Merriam

Marmota caligata caligata (Eschscholtz)
. Citellus plesius plesius (Osgood)

. Eutamias minimus caniceps Osgood

. Sciurus hudsonicus hudsonicus (Erxleben)
. Castor canadensis canadensis Kuhl

. Peromyscus maniculatus borealis Mearns
. Neotoma cinerea saxamans Osgood

. Synaptomys borealis dalli Merriam

. Microtus drummondii (Audubon and Bachman)
. Microtus mordax mordax (Merriam)

. Ondatra zibethica spatulata (Osgood)

. Erethizon epixanthum nigrescens Allen

. Lepus americanus macfarlani Merriam

. Alces gigas Miller

SPASM whe

HH
Hoo

Hee
oO ® ww bo

Bee
Cana

pr bo
a)