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Richardson, Louise

Black-footed ferrets (Mustela nigripes) excavate subsoil from black-tailed prairie dog (Cynomys ludovicianus) burrows and deposit it in unique piles. Black-tailed prairie dogs tend to fill in or "plug" burrows visited or occupied by ferrets (Hillman 1968, Henderson et al. 1969, Fortenbery 1972). In this paper, we describe the configuration, rate of production, persistence, and seasonality of ferret diggings and rate of burrow plugging by prairie dogs within white-tailed prairie dog (C. leucurus) colonies. Published in Journal of Wildlife Management, volume 48, issue 4, on pages 1441 - 1444, in 1984.
Eighty-six scats were analyzed to determine food habits of wild black- footed ferrets (Mustela nigripes). Most scats were collected during winter (N = 27) and spring (N = 27); scats from summer (N = 2), autumn (N = 2) and from undetermined seasons (N = 28) accounted for the remainder. White-tailed prairie dog remains oc- curred in 87% of all scats. Mouse remains were found in 6% and lagomorph remains in 3 % of scats. Published in American Midland Naturalist, volume 117, issue 1, on pages 208 - 210, in 1987.
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