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along rivers, creeks, springs, and marshes with dense thickets of tall riparian shrubs and overstory of trees, surface water or saturated soils, and stream gradients less than 4%. Mexican Spotted Owl (Strix occidentalis lucida)- Threatened. A medium to large sized bird of prey found usually below 9,100 feet in large canyons with exposed cliffs and dense old growth mixed coniferous forests dominated by Douglas fir and/or white fir, or canyons in pinyon juniper azeas with small and widely scattered patches of old Douglas fir. Feeds on small to medium sized forest dwelling birds and mammals. Summer roost sites are in cool micro-climates, generally with a closed canopy and/or on north facing slopes. Nest sites in Colorado are in caves entrances, crevices on steep cliff faces or in stick nests in trees. Most likely to be found on the Uncompahgre Plateau although no nests have been located at this time. Whooping Crane (Gros americans)- Endangered. Normally found below 7,800 feet around reservoir mudflats and agricultural areas.. Not a permanent or breeding species on National Forest Lands. INSECTS Uncompahgre fritillary butterfly (Boloria acrocnema). Endangered. Found around or above 12,000 Feet. Snow willow patches '/. acre or larger on north, northeast, east, and southeast aspects, often below a melting snowdrift.. Above the tree line. Found primarily in the San Juan Mountains and La Garita Mountains. May also occur in the Elk and Collegiate mountain ranges. ~„t '" FISH Four Colorado River Fishes, the Humpback chub (Gila cypha), Colorado pikeminnow C== (Ptychocheilus Lucius) Razorback sucker (Xyrauchen texanus) and Bonytail chub ~:; ~ > ~,_: ~'``'Y (Gila eleQans) aze all endangered fishes in the lower Colorado River drainage. These fish species occur in the Colorado River downstream from the boundary of the Forest and aze affected by water depletion activities in the headwaters on National Forest lands. AMPHIBIANS v=~. Boreal Toad (Bufo boreal boreal)-Candidate Species. Boreal toads occupy a variety of wetland habitats including pond margins, willow karrs, wet meadows and riparian areas. `~'; The only toad species in Colorado above about 8,000 feet. Prefers high elevation forests . ~~`u Requires open water of some type for breeding. Buries itself in loose soil or seeks shelter in burrows of gophers, ground squirrels, and other animals. Can be found up to 12,000 ~;. ,;~,; feet. Black eggs in tubular masses are very distinctive in ponds and breeding pools. ''`' Pitch black tadpoles in small ponds is also very distinctive. Toads themselves can be found in ponds, small creeks, and moist Forest environments and are characterized by a (' whitish line on it's back.