1926] Swarth: Birds and Mammals from the Atlin Region 101

SUMMER SPECIMENS EXAMINED

1. Lagopus rupestris rupestris (Gmelin). Gray Rock Ptarmigan.

Labrador: East end of McLellan Strait, 3.

Ungava: Mouth of Nastapoka River, 1.

Franklin: Hudson Strait, 2; Ponds Inlet, Baffin Land, 1; Griffith Point,
Melville Id., 2; Cape Kellett, Banks Id., 2; Taylor Id., Victoria Land, 2.

Mackenzie: Clinton-Golden Lake, 1; Cap Mountain, 1.

British Columbia: Mountains near head of Chapatan River (headwaters of
Stikine River), 3; near Atlin, 16; White Pass, 4; Nine-mile Mountain
(near Hazelton), 3.

Total, 41.

2. Lagopus rupestris kelloggae Grinnell. Alaska Rock Ptarmigan.

Alaska: Collinson Point, 9; Demarcation Point, 4; Griffin Point, 5; Camden
Bay, 1; Point Barrow, 1; Jade Mountains, 1; Gens de Large Mountains,
1; Hula-hula River, 1; Okpela River, 1; Humphrey Point, 1; Nome, 1;
Wales, 5; Teller, 2; Kruzgamepa River, Seward Peninsula, 24; Pilgrim
River, Seward Peninsula, 4; Kings Cove, Alaska Peninsula, 2; Thin
Point, Alaska Peninsula, 5; Kodiak Island, 1; Seward, 1; Montague
Island, 1; Hinchinbrook Island, 2; Hawkins Island, 2; Fort Yukon, 1;
mountains near Eagle, 17.

Mackenzie: Arctic coast east of Fort Anderson, 1; Fort Anderson, 1; Baillie
Island, 3; Coronation Gulf, 8; Cape Bathurst, 1; Franklin Bay, 2; Kanyah
Island, Bathurst Inlet, 2; Cockburn Point, 2; Bernard Harbor, Dolphin
and Union Strait, 1.

Yukon Territory: Kay Point, Arctic Coast, 3.

Total, 117.
3. Lagopus rupestris dixoni Grinnell. Dixon Rock Ptarmigan.

Alaska: Port Frederick, Chichagof Island, 2; mountains near Sitka, 4; Port
Snettisham, 1; White Pass, 2. Total, 9.

Our field experiences wih the rock ptarmigan were productive of
some facts of interest. One feature of the species (one that has been
commented upon by others) was its irregular and local distribution.
A male, a single bird, was shot by Brooks near the summit of Monarch
Mountain, June 9. This was the only one that was seen by us on
that mountain during the summer, though we ascended it many times.

On one of the ridges of Spruce Mountain, during the last week in
July and the first two weeks in August, rock ptarmigan were found
regularly and in fair abundance, every time we climbed that particular
ridge. On an adjoining ridge, of similar aspect, none was seen, and
certain other nearby mountains were also explored to no avail.