. Fig. 52. Distribution of Sciurus niger rufiventer in Colorado. Shaded area is conterminous range in state; isolated symbols represent extralimital intro- ductions (see text for discussion). For explanation of symbols, see p. 9. Collins along Buckhom Creek at an elevation of about 7800 feet. Hoover (1954) reported on litter-size in Coloradan fox squirrels. Borrell (1961) noted a casual observation of antagonistic behavior of a fox squirrel toward a mourning dove in Denver. In 1968 the fox squirrel was accorded the status of a game animal in Colorado, and a three-month open season was establis
. Fig. 52. Distribution of Sciurus niger rufiventer in Colorado. Shaded area is conterminous range in state; isolated symbols represent extralimital intro- ductions (see text for discussion). For explanation of symbols, see p. 9. Collins along Buckhom Creek at an elevation of about 7800 feet. Hoover (1954) reported on litter-size in Coloradan fox squirrels. Borrell (1961) noted a casual observation of antagonistic behavior of a fox squirrel toward a mourning dove in Denver. In 1968 the fox squirrel was accorded the status of a game animal in Colorado, and a three-month open season was established. Un- published data from the Division of Game, Fish and Parks indicate a harvest of 5067 ani- mals by 1699 hunters during the first hunting Sciurus niger rufiventer fi. Geoffroy Sciurus rufiventer fi. Geoffroy , Cata- logue des marnmiferes du Museum National d'His- toire Naturelle, Paris, p. 176, 1803; type locality, Mississippi Valley, probably between southern Illinois and central Tennessee (see Osgood, 1907). Sciurus niger rufiventer, Osgood, Proc. Biol. Soc. Washington, 20:44, 18 April 1907. Distribution in Colorado.—Primarily in ri- parian woodlands of South Platte and Repub- lican drainages; introduced elsewhere (see Fig. 52 and Hoover and Yeager, 1953:360). Measurements.—Mean (and extreme) ex- ternal measurements of eight males, followed by those of 10 females, from Larimer and Weld counties, are: (462-576), (470-537); (172-244), (196-293);
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