. Wild animals of Glacier National Park. The mammals, with notes on physiography and life zones . FIG. 1.—SIDE-HILL BURROW AND MOUND OF EARTH THROWN OUT BYCOLUMBIA GROUND SQUIRREL NEAR PIEGAN PASS. The burrow excavated and mapped is shown in text figure FIG. 2.—COLUMBIA GROUND SQUIRREL AND BURROW AT McDERMOTT LAKE, JULY, 1917. MAMMALS. 45 occasions one ma}^ be heard to make a lon; shiill scjueak or whistlingnote, but this is so rare that few people ever notice it. The five or six young- are [)orn in May or June and by August arewell grown and caring for themsehes. Like the ground scjuirrel
. Wild animals of Glacier National Park. The mammals, with notes on physiography and life zones . FIG. 1.—SIDE-HILL BURROW AND MOUND OF EARTH THROWN OUT BYCOLUMBIA GROUND SQUIRREL NEAR PIEGAN PASS. The burrow excavated and mapped is shown in text figure FIG. 2.—COLUMBIA GROUND SQUIRREL AND BURROW AT McDERMOTT LAKE, JULY, 1917. MAMMALS. 45 occasions one ma}^ be heard to make a lon; shiill scjueak or whistlingnote, but this is so rare that few people ever notice it. The five or six young- are [)orn in May or June and by August arewell grown and caring for themsehes. Like the ground scjuirrelsantl unlike the chipmunks, they become extremely fat during thesummer, and before the cold weather begins they enter their warmunderground* nests, where apparently they hibernate for the longwinter period, or from September to April. Just when the wintersstores of seeds and grain are eaten is not definitely known, but theyare i)r()bably intended to tide the sleepers over the beginning andend of their hil)ernation period, when food is scarce or they are toosleepy to go after it. Columbia Ground Squirrel : Cltellus columhlarhus (Ord).—Colum-bia ground squirrels, or, as often called, picket pins, and, incorrectly,gophers, are in many place
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbirds, booksubjectmam
