. A biological survey of Colorado. Natural history Colorado; Mammals Colorado; Trees Colorado. 184 XOHTIT FAUNA. [No. (53. (\>unty^ jiio in tlio Biiilooical Survov colloclion. Otliors in tlio AVanvn colloction from (Vostod l^ntto jind Colorado S])nnos \uxyo luHMi (^xaininod hy Bioloixit'al Survov. In 1S71 A11(M\ found minks common alonir tlu^ slnnnns of Tarl-: County as liiirli as IVot.^ Putorius nigripes And. and Bach. IMack-footcd Ferret. This rare and little known mammal has been recorded from a number of localities on the j)lains of eastern Colorado (see fig. 27), but
. A biological survey of Colorado. Natural history Colorado; Mammals Colorado; Trees Colorado. 184 XOHTIT FAUNA. [No. (53. (\>unty^ jiio in tlio Biiilooical Survov colloclion. Otliors in tlio AVanvn colloction from (Vostod l^ntto jind Colorado S])nnos \uxyo luHMi (^xaininod hy Bioloixit'al Survov. In 1S71 A11(M\ found minks common alonir tlu^ slnnnns of Tarl-: County as liiirli as IVot.^ Putorius nigripes And. and Bach. IMack-footcd Ferret. This rare and little known mammal has been recorded from a number of localities on the j)lains of eastern Colorado (see fig. 27), but luM-e, as elsewhere over its range, its numbers are small Usually. Fig. 27.—Distribution in Colorado of dwarf weasel {Putorius streatori leptus) and black-footed ferret {P. nigripes). it is found in prairie-dog towns, wdiere it takes up its abode in an abandoned burrow, and from this convenient base preys upon the defenseless inhabitants of the colony. These ferrets are most beneficial mammals, because their prey consists largely of prairie dogs. In December, 1894, black-footed ferrets were reported to Streator as present, but rare, at three points in the Arkansas Valley: Olney, Otero County; Arlington; and Chivington, Kiowa County. Prof. D. E. Lantz heard of a very few in the region about Hugo in 1905, where they are known as prairie-dog ferrets. In 1907 I heard of this species in the dog towns of Baca and southern Prowers Counties, I Bull. Essex Inst., VI, p. 54, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Cary, Merritt, 1880-1918; United States. Bureau of Biological Survey. Washington : Government Printing Office
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