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State Reg. <br />:`~y~r ti: ;G <br />3. Upland Sagebrush Areas-= The~uplarid sagebrush comrrmunit`y occurs <br />.mainly on well-drained, soils in the southwestern section of the study <br />s... ..... ., -, ... ~, <br />_ area. ,_ .The: type is .characterized ~by relativeFy homogeneous stands of <br />.; ~,--.. ,.. basin. bigsagebrush. Snowberry~ond,Douglas rabbitbrush may be locally <br />.common rnsome areas of this type. Plants most common to the type are <br />~~basin. big sagebrush; Letterman needlegross,'arrowleaf balsamroot, and <br />rriulesear.wyetfiiq.. ~ J `, ~, ,' ' <br />4. Disturbed \and ,Barren Areas -These areas occupied about 23 percent <br />of the vegetation study area. Because of the lack of cover, no data was <br />available. <br />~,{,: ~ ..r.:r ....:. - _ ._ _ ~~ , <br />... .,, ~, <br />Amore detailed description of these vegetative communities is found in <br />Tab ~10 and Exhibit i0-i. <br />Wildlife studies are detorled in Tab I I. Following is a summary of wild- <br />life.uses of the permit area. <br />,1.. Passerine Species. As detailed in Tab 11, the greatest number of <br />avignispecies occur in the aspen subtype. Th.is~species diversity is a <br />r :~. ,.. <br />_ function. of _structural heteorogeneity.~~ The lowest species diversity was <br />. found in the shrub types. <br /> <br />Of .the seven most, important breeding.. passerine species (Green-tailed <br />towhee, House wren, Tree swallow, American robin, Brewer's sparrow, <br />Brown-headed .cowbird, and Violet-green swallow), four had an affinity <br />•_- .. <br />for, or were common in, the aspen subtype, one (Violet-green swallow) <br />had an affinity for riparian habitat, and only .two (Green-tailed towhee <br />and Brewer's sparrow) had an affinity for the shrub types. <br />2. Raptors. Three Golden eagle nests are located in cliffs on the periph- <br />ery of the mining area. Overwintering Golden eagles generally perch.on <br />these cliffs and have been observed hunting primarily the Gambel oak <br />.shrub type. Prairie falcons are also nesting in cliffs around the permit <br />area and hunt the open areas. All other raptors observed on or near the <br />permit areo nest primarily in aspen and other trees. <br />5-27-81 <br />