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(Durange Bird Club, no date). Therefore, each vertebrate class noted above was covered by two <br />regional distribution documents. Identifications were made with the aid of Armstrong (1972), Burt <br />and Grossenheider(1952), Murie {1954), National Geographic Society (1987), and Stebbins (1966). <br />Mammal common and Latin names follow the Colorado Mammal Distribution Latilong Study. The <br />common names of birds follow the American Ornithologists Union (1983) checklist (plus the 1985 <br />and 1987 supplements), and reptile and amphibian names follow Stebbins (1966). Latin names are <br />presented in Tables 2.04.11-2 and 2.04.11-9 and for sake of brevity, are not used in the text except <br />where discussing species not listed in the tables. <br />Throughout the course of the baseline surveys, contact was made with several different wildlife <br />agency personnel. This correspondence provided Peabody and its successor, WFC, with additional <br />information concerning the status of specific species or species groups in the study area. The <br />following personnel were contacted during the course of this study: Rick Sherman of the Colorado <br />Division of Wildlife (CDOW), Ron Arant (CDOW), Bob Clark (CDOW), Jeffrey Opdyke ofthe United <br />States Fish and Wildlife Service (USFWS), Bob Leachman (USFWS), and Peter O'Connor(OMLR). <br />Dates of Field Work. Wildlife field sampling and observation activities were conducted in the <br />Nucla East study area on the following dates: 20-22 May 1987, 26-29 May 1987, 9-10 July 1987, <br />19-22 July 1987,17-18 August 1987,15-16 September 1987, 7-10 October 1987, 28 October 1987, <br />and 12-13 January 1988. The specific methods used in the study for each wildlife group are <br />discussed below. <br />Mammals. Mammals were surveyed on the study area by direct observation, capture, or detection <br />of tracks, scats, dens, or nests. Conversations with Mr. Ron Arant provided information on several <br />furbearing species and game species. <br />Small mammalsweresampled using Sherman livetraps, Woodstream museum special snaptraps, <br />and Victor rat snap traps. Live traps were baited with oatmeal and snap traps were baited with <br />peanut butter and oatmeal. Spring trapping was conducted on the evenings of 27-29 May 1987. <br />Trapline locations are shown on Map 2.04.11-1. The following sampling designs were used: <br />• (REVISED6/27/01) 2.04.11-9 <br />