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bias, surveys were started at a different plot/transact each morning. • <br />Surveys were nat conducted on rainy or windy mornings. When birding <br />in the circular plots, an observer moved quietly around in the middle <br />50m of a plot for 30 minutes and recorded all birds seen and heard <br />within the plot. In bottomland, the observer slowly walked the cen- <br />terline of a transact and recorded all birds seen and heard within the <br />belt. All birds encountered were identified to species. Birds were <br />listed as seen, seen and heard, or heard. Family groups and flocks <br />were also noted. Birds seen or heard beyond survey plots/transacts <br />were recorded as incidentals, but not included in abundance analysis. <br />SMALL MAMMALS <br />Small mammals were trapped in five habitats: aspen, mountain <br />brush, sagebrush, bottomland, and sandstone outcrop. Two trap lines <br />were established in each habitat. Each trap line consisted of 20 • <br />stations spaced at 10-m intervals. Two traps were placed at each <br />station: a Sherman live trap (T.6 X 8.9 X 22.9 cm), plus a Museum <br />Special snap trap or a pitfall (a 1110 can buried to its rim in the <br />ground). In all habitats except sandstone outcrop, 20 Sherman live <br />traps, 15 Museum Specials, and 5 pitfalls were set along each line. <br />Twenty Sherman traps and 20 Museum Specials were set along sandstone <br />outcrop lines. <br />Sherman traps were baited with a mixture of birdseed, rolled <br />oats, peanut butter, and bacon grease. Nesting material (cotton <br />balls) was also placed in the live traps. Snap traps were baited with <br />a mixture of peanut butter, bacon grease, and bird seed. Pitfall <br />traps were not baited. Sherman and snap traps were rebaited, if • <br />necessary, each time they were checked. <br />6 <br />