Mammal Tracks & Sign by Mark Elbroch

Author:Mark Elbroch
Language: eng
Format: epub
ISBN: 9780811743334
Publisher: Stackpole Books

Muskrat. Muskrats form runs between water sources and leading from burrow systems (in habitats where they do not build lodges) to feeding areas. You can also find them connecting ponds to each other over quite large distances, as well as connecting ponds to feeding areas on land. The walls of muskrat runs are usually vertical, like those of other rodents, and they have square edges. Widths range from 3½ to 5½ inches(8.9 to 14 cm).

Snowshoe hare. Snowshoe hare runs are more like cottontail than jackrabbit runs, in that they have softer and rounder edges. Widths range from 4 to 8 inches (10.2 to20.3 cm).

Jackrabbit. Jackrabbits form runs in a variety of substrates, most easily discernible in snow. Although all species form runs, black-tailed jackrabbit runs are particularly impressive. In southern Idaho, in about 16 inches of snow, the walls of these runs were 10 inches high. Of all the rabbits, the black-tailed jackrabbit makes runs with the most vertical and crisp walls and edges. Widths range from 5 to 9 inches(12.7 to 22.9 cm).

Porcupine. Porcupine runs lead directly from trees, rock ledges, or other cover to feeding areas—often a grove of mast-producing trees or conifers in the winter. Runs are alsofound following wetland edges. Scat and quills should be evident along the runs. The walls of porcupine runs are not as crisp as those of smaller rodents. Widths range from 6 to 9 inches (15.2 to 22.9 cm).

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