Golden-mantled ground squirrel on a rock in Grotto Canyon.

Golden-mantled ground squirrel on a rock in Grotto Canyon.

Golden-mantled ground squirrel (Callospermophilus lateralis) on a rock.

Golden-mantled ground squirrel (Callospermophilus lateralis) in Grotto Canyon.

Golden-mantled ground squirrel in Grotto Canyon.

Golden-mantled ground squirrel (Callospermophilus lateralis) in Grotto Canyon.

Golden-mantled ground squirrel in Grotto Canyon.

Golden-mantled ground squirrel in Grotto Canyon.

Golden-mantled ground squirrel on the rocky walls of Mount Ha Ling.

Golden-mantled ground squirrel on the rocks of Sarrail Ridge.

Golden-mantled ground squirrel on a rock, Sarrail Ridge, Kananaskis.

Golden-mantled ground squirrel on a rock in the Kananaskis region.

Golden-mantled ground squirrel on a rock in the Kananaskis Valley.

Golden-mantled ground squirrel (Callospermophilus lateralis) in the Kananaskis region.

Golden-mantled ground squirrel on a rock, Sarrail Ridge.

Golden-mantled ground squirrel on Sarrail Ridge, in the Kananaskis Valley.

Golden-mantled ground squirrel on a Mount Sarrail rock, in the Kananaskis Valley.

Golden-mantled ground squirrel on a rock at Sarrail Ridge, Kananaskis.

American pika (Ochotona princeps) in the rocks of Kananaskis.

Red squirrel (Tamiasciurus hudsonicus) on a tree trunk in the Kananaskis Valley.

Red squirrel on a tree trunk in the Upper Kananaskis Lake area.

American red squirrel (Tamiasciurus hudsonicus) on a branch in Banff National Park.

Red squirrel (Tamiasciurus hudsonicus) on a branch in Banff National Park.

Red squirrel (Tamiasciurus hudsonicus) on a branch in Banff.

Red squirrel (Tamiasciurus hudsonicus) on a branch in Banff National Park.

American red squirrel (Tamiasciurus hudsonicus) on a branch in Banff National Park.

American red squirrel (Tamiasciurus hudsonicus) on a branch in Banff.

Golden-mantled ground squirrel on a rock on the Lake Minnewanka trail.

Golden-mantled ground squirrel (Callospermophilus lateralis) in Banff National Park.

Golden-mantled ground squirrel (Callospermophilus lateralis) in Banff National Park.

Golden-mantled ground squirrel (Callospermophilus lateralis) in Banff National Park.

Golden-mantled ground squirrel on a rock at Lake Louise, Banff National Park.

Golden-mantled ground squirrel on a rock at Lake Louise, Banff National Park.

Golden ground squirrel on a rock in Banff.

Golden-mantled ground squirrel on the Big Beehive trail.

Golden-mantled ground squirrel on a rock on the Big Beehive trail.

Golden-mantled ground squirrel at Lake Louise.

Golden-mantled ground squirrel at the Big Beehive.

Golden-mantled ground squirrel (Callospermophilus lateralis) near Lake Louise.

Golden-mantled ground squirrel (Callospermophilus lateralis) in Banff National Park.

Golden-mantled ground squirrels on the Big Beehive trail near Lake Louise.

Golden-mantled ground squirrel near Lake Louise.

American pika on a rocky scree on the Big Beehive trail, near Lake Louise.

American pika (Ochotona princeps) on a rock on the Big Beehive trail.

American pika on the Big Beehive trail in Banff National Park.

American pika (Ochotona princeps) on the rocks of Lake Louise, in Banff.

Golden-mantled ground squirrel at the summit of Whistlers, in Jasper National Park.

Golden-mantled ground squirrel (Callospermophilus lateralis) on a lichen-covered rock in Jasper National Park.

Golden-mantled ground squirrel at the summit of Whistlers, in Jasper National Park.

Golden-mantled ground squirrel on a rock at the summit of Whistlers, Jasper National Park.

Golden-mantled ground squirrel on the Summit Trail in Jasper.

Golden-mantled ground squirrel on the rocks at the summit of Whistlers, Jasper National Park.

Golden-mantled ground squirrel on the Whistlers Summit trail, Jasper National Park.

Golden-mantled ground squirrel on the Whistlers Summit trail, Jasper National Park.

Golden-mantled ground squirrel at the summit of Whistlers, in Jasper National Park.

Golden-mantled ground squirrel on the Whistlers trail in Jasper National Park.

Squirrel at the top of a pine tree on the Cox Bay trail, near Long Beach.

Squirrel eating a pinecone on the Cox Bay trail.

Red squirrel in a pine tree at Long Beach.

Smooth-coated otter in the Tanglin Foliage Garden.