1926] Swarth: Birds and Mammals from the Atlin Region 85

rarely seen in the groves of poplar (the principal deciduous forest
tree), and it follows the spruce up the mountain sides as far as that
tree goes. We saw none in the balsam woods of slightly higher altitude,
where the blue grouse (Dendragapus) is found.

Twelve specimens of spruce grouse were collected (nos. 44666—
44677): two adult males, one adult female, one downy chick, near
Atlin, June and July; one adult male, Spruce Mountain, August 8,
nearly through the molt; one adult female and one immature male,
Atlin, August 27, both finishing the molt; one male, Gladys Lake,
September 9; one male and three females, Fat Creek, five miles west
of Lake Teslin, September 13.

These birds were all taken within fifty or sixty miles of Lake
Marsh, the type locality of osgyoodi, and may fairly be assumed to be
typical of that subspecies. Through the courtesy of Dr. L. B. Bishop
I have been able to examine three near-topotypes of osgoodi, females
from Lakes Marsh and Lebarge, but these birds, taken in July, are in
such worn plumage as to be of little value for color comparisons. Most
of the specimens from southern Yukon and northern British Columbia
are appreciably different from birds from the northern limits of the
habitat of osgoodi, as currently defined. Northern Alaskan birds
exhibit the extreme of grayness seen in the species Canachites
canadensis. One female taken in June at Atlin is as gray as any of the
more northern birds, but the rest of the series are less overcast with
grayish dorsally, less heavily marked with white on the breast, and
are generally more richly colored. For the present it seems best to
continue to use the name osgoodi for the race of spruce grouse occur-
ring from northern Alaska south into northern British Columbia, but
future collecting, especially of series from Alberta and Mackenzie,
may show the desirability of a different arrangement.

Bonasa umbellus umbelloides (Douglas). Gray Ruffed Grouse

An uncommon species in the Atlin region, in our experience. An
occasional cock bird was flushed in poplar thickets, and two broods of
young were seen during the summer. Aside from the chicks, not more
than eight or ten birds, all told, were seen. Two specimens were
collected (nos. 44678-44679), adult males, taken September 19 and 21,
respectively.