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LI <br />The most recent U.S. Fish and Wildlife threatened and endangered species list for <br />Weld County (October 10, 2006) includes: <br />Species <br />Scientific Name <br />Status <br />Bald eagle <br />Haliaeetus leucoce halus <br />T <br />Black -footed ferret <br />Mustela nigripes <br />E <br />Colorado butterfly plant <br />Gaura neomexicana ssp. <br />colorandensis <br />T <br />Interior least tern <br />Sterna antillarum athalassos <br />E <br />Mexicanspotted owl <br />Strix occidentalis <br />T <br />Pallid sturgeon <br />Sca hirhynchus albus <br />E <br />Piping lover <br />Charadrius melodus <br />T <br />Preble's meadow jumping mouse <br />Za us hudsonius preblei <br />T <br />Ute ladies' -tresses orchid <br />S iranthes diluvialis <br />T <br />Whooping crane <br />Grus americana <br />E <br />Bald Eagle <br />Bald eagles utilize large old growth cottonwoods along rivers and lakes for <br />perching, hunting, roosting, and nesting. The major food source for bald eagles <br />along the Front Range and eastern plains of Colorado is prairie dogs (based on <br />analysis of remains in nests), waterfowl, and fish in that order. No prairie dogs <br />colonies or mature cottonwood trees along waterways are present within or <br />• adjacent to the Keenesburg Mine, therefore there is no potential for impacts to <br />bald eagles from the project. <br />Black -footed Ferret <br />The black footed -ferret only remains outside captivity in experimental <br />populations, none of which is located within the project site or adjacent areas. <br />Colorado Butterfly Plant <br />The Colorado butterfly plant is a federally listed, threatened plant species known <br />to occur in Colorado. According to the U.S. Fish and Wildlife Service, <br />Endangered and Threatened Wildlife and Plants; Designation of Critical Habitat <br />for the Colorado Butterfly Plant, the butterfly plant is known to occur in <br />Wyoming, Colorado, and Nebraska. The Colorado butterfly plant is found at <br />elevations of 5000 to 6000 feet in stream deposited soils on level or slightly <br />sloping floodplain and drainage bottoms. Most populations are found in low <br />depressions or along bends in wide, active, meandering stream channels a short <br />distance upslope of the active channel, and may occur at the base of alluvial <br />ridges at the interface between riparian meadows and drier grasslands (USFWS, <br />• 2006). As none of this habitat is present at the Keenesburg Mine, there is no <br />potential for impacts to the Colorado butterfly plant. <br />96 10106 <br />