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STMALL MAMMAL STUDIES <br /> Small mmral species composition, abundance, and habitat association were <br /> determined by live trap censusing conducted during October, 1979 (see <br /> Results, page 27) . Three 100m transects were placed in representative areas <br /> of each of the following vegetation types on the study area. <br /> 1. Upland sagebrush <br /> 2. Grassland pasture <br /> An additional transect was established in a small riparian area on the north- <br /> east edge of the study area (Map 11-1, Appendix A) . Two Sherman live traps <br /> were placed at each lOm interval along each transect. Traps were baited with <br /> a peanut butter, cracked corn, rolled oats, bacon fat mixture and checked <br /> for four consecutive nights. All traps were provided with dacron-fiber <br /> batting to avoid animal loss due to hypothermia. All individuals captured <br /> were toe-clipped and recorded according to species, sex, age (juvenile or <br /> adult) , reproductive status (active or inactive) , and location and then <br /> released. <br /> AVIFAUNA STUDIES <br /> Four different components of the avifauna were studied: <br /> 1. Passerine birds <br /> 2. Raptorial birds <br /> 3. Upland game birds <br /> 4. Waterfowl <br /> Four different surveys were undertaken to determine the presence, abundance <br /> and production of avifauna on the study area: <br /> JUN 1 11980, <br />