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the predominant group of waterfowl species which utilize aquatic habitat present on the study area. <br />Beaver ponds located in upper Hubberson Gulch (Section 34, TSN, R88W) supported some duck <br />production in 1979, as three different mallard hens with young were observed to utilize these ponds in <br />June. <br />Threatened or Endangeredpecies. No federally listed threatened or endangered animal species are likely <br />to occur on the study area. The bald eagle is known to winter along the Yampa River and may <br />occasionally wander over the study area, but suitable habitat for wintering bald eagles is not present on the <br />Seneca I1 -W study area. Although not listed as threatened or endangered, the golden eagle has been given <br />the same legal protection as the bald eagle by virtue of its inclusion in the Bald Eagle Protection Act. <br />Golden eagles have been shown to utilize the study area, and one active nest was found in Hubberson <br />Gulch as indicated in Table 11-10. <br />The greater sandhill crane (Grus canadensis) is listed as a species of Special Concern by the State of <br />Colorado and may rarely wander onto the study area. Sandhill cranes are known to utilize portions of the <br />Yampa River Valley for migration and for dancing and staging areas. Wildlife Resources Information <br />(Inventory Maps) obtained from the CPW classifies the Yampa River north of the permit area as a <br />migration zone. The area to the west of the confluence of Sage Creek and the Yampa River in the vicinity <br />of the Hayden Power Station is designated as a dancing ground and migration zone. Nesting by ap- <br />proximately three sandhill cranes occurs below the Sage Creek Reservoir Dam (CPW Wildlife Resources <br />Information). <br />The status of the greater sandhill crane was summarized by Bieniasz (1979). According to her discussion, <br />the Morgan Bottom area near Hayden, Colorado is a traditional migration staging area for the greater <br />sandhill crane. The area is used by approximately 250 cranes during April, May, and September. The <br />birds roost at night in meadows adjacent to the Yampa River and disperse during daytime to traditional <br />congregation areas. One such area, used for feeding, loafing, and courtship activities is located near the <br />Tie -Across Haulroad, between U.S. Highway 40 and County Road 51A. Based on maps, Bieniasz (1979), <br />the haulroad passes within about 0.75 mile of the crane use area (Exhibit 11-1). <br />The peregrine falcon (Falco Pere rg inus) is classified as endangered by both the United States and the State <br />of Colorado. No suitable habitat exists for this species within the vicinity of the Seneca II -W area, <br />however, peregrine falcons may travel through the area when migrating or hunting. <br />MT18-07 23 08/20/18 <br />