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Table 1.1 TES Federally Listed Fauna Species Potentially Occurring in the Project Area Eliminated from Detailed Evaluation. TES FAUNA SPECIES Reasons for elimination Species Name Federal Habitat from detailed evaluation Status Black-footed ferret Typical habitat consists of No prairie dogs or prairie dog (Musrela nigripes) Endangered prairie dog colonies larger burrows occur within the PA than 80 hectares in size Bonytail Requires Flowing water No perennial water sources in (Gila elegons) Endangered project area Boreal Toad Candidate High elevation pristine No suitable habitat in PA (Bufo boreas boreas) riparian areas Canada Lynx Early and late-successional Habitat does not exist in the (Lynx Canadensis) Threatened mixed conifer forest types PA Colorado pikeminnow Occurs in big rivers with No perennial water sources (Ptychocheilus [ucius) Endangered warm, swift, turbid waters exist within the PA Eskimo Curlew Nests on Arctic Tundra; May occur migrating through (Nrtmenius borealis) Endangered winters in South America area Gunnison Sage Crouse Lek sites are characterized The PA does not provide (Cenrrocercus minimus) Candidate by low vegetation with suitable lek habitat sparse shrubs by big sagebrush dominated plant communities Humpback Chub Requires flowing water No perennial water sources in (Gila cypha) Endangered project area Mexican Spotted Owl Most nests are in caves or No potential habitat in PA due (Srrix occidenralis lucidn) Threatened on cliff ledges in steep- to a lack of mixed coniferous walled canyons and mixed forests and steep walled conifer forests can ons Peregrine Falcon Protected Prefers open country and Isolated narrow cliff bands (Falco peregrines onorum) under the high vertical clifTareas for occur along the steep slopes Migratory Bird nesting (>200 feet) north of the project area. No Treaty Act suitable nesting habitat in the (MBTA) pA Razorback sucker Endangered Mainstream portions of No perennial water sources (Xyrauchen rexanus) with Critical rivers exist within the PA Habitat Southwestern Willow Breeds in riparian habitats No potential habitat in PA due Flycatcher Endangered where dense growth of to a lack of riparian areas (Em idonax rraillii exrimus) willows are resent Uncompahgre fritillary Occurs in alpine habitats No alpine habitat in PA butterfly Endangered above 11,000 feet in (Bolorio ocrocnemaJ elevation Whooping Crane Dryland or irrigated No open water immediately (Gres americona) Endangered pastures, grass prairies, near PA sagebrush with o en water