. Wild animals of Glacier National Park. The mammals. Glacier National Park (Agency : U. S. ); Mammals; Birds. 20 WILD AXIMALS OF GLACIER NATIONAL PARK. mals include the Richardson and thirteen-lined ground squirrels, the Saskatchewan pocket gopher, and the prairie hare; while the west- ern vesper sparrow, western Savannah sparrow, western chipping sparrow, lazuli bunting, yellow warbler, and long-tailed chickadee are characteristic birds. On the west slope of the park traces of the zone are seen in the yellow pines in the North Fork Valley, a few mountain junipers along the river banks, black
. Wild animals of Glacier National Park. The mammals. Glacier National Park (Agency : U. S. ); Mammals; Birds. 20 WILD AXIMALS OF GLACIER NATIONAL PARK. mals include the Richardson and thirteen-lined ground squirrels, the Saskatchewan pocket gopher, and the prairie hare; while the west- ern vesper sparrow, western Savannah sparrow, western chipping sparrow, lazuli bunting, yellow warbler, and long-tailed chickadee are characteristic birds. On the west slope of the park traces of the zone are seen in the yellow pines in the North Fork Valley, a few mountain junipers along the river banks, black thornapple along the lake shores, west- ern birch along the streams, and an abundance of serviceberrics, syringa, ocean spray, and Ceanothus sanguineus on the low, warm slopes; but no considerable area can be called Transition Zone. The climate of these low valleys is mild, but the snowfall is so heavy and the timber growth so dense that melting snow, delayed late into. Fig. 1.—Open Transition Zone valley. Yellow pines on and along edge of Big Prairie in North Fork Flathead Valley, looking east to Vulture Peak. April 16, 1918. spring by the cool forest shade, favors the plant growth and the animal life of the Canadian Zone, which dominates the valleys. CANADIAN ZONE. Tlie Canadian, which comprises the well-timbered areas of the park, is the most extensive of the four life zones. It reaches from practicallj' the base of the park all around up to altitudes of approxi- mately G,000 feet on northeast slopes and 7,000 feet on southwest slopes, varying somewhat with the steepness and soil cover and with the amount of sunlight allowed to reach the surface of the ground. Most of the zone is covered by heavy forests of lodgepole pine, Engelmann spruce, subalpine fir, aspens, black cottonwood, and mountain maple, but over the lower part of the west slope of the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability -
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbirds, booksubjectmam
