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FLOOD09503
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Last modified
1/26/2010 10:09:27 AM
Creation date
10/5/2006 4:24:38 AM
Metadata
Fields
Template:
Floodplain Documents
County
Ouray
Community
Ouray
Stream Name
Skyrocket Creek
Basin
Gunnison
Title
Skyrocket Creek Diversion Wall Replacement Feasibility Study
Date
12/1/2000
Prepared For
Ouray
Prepared By
Buckhorn Geotech
Floodplain - Doc Type
Project
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<br />:was developed from the following sources: a list of candidate, proposed" and <br />listed threatened and endangered species and species of concern received from <br />the FWS (see Attachment B); a list of State threatened and endangered species <br />from the Colorado Division of Wildlife (see Attachment C); and a review of <br />literature on species distribution and habitat requirements. The resulting list is <br />shown in Table 1, which also gives information on habitat requirements and <br />distribution of special status species in the project area, <br /> <br />Of the species listed in the table, eight are Federally listed as endangered, <br />two are threatened, one is proposed threatened, and one is a species of concern. <br />Species of concern have no formal protection under the Fedl,ral Endangered <br />Species Act, but are given special consideration because they could be proposed <br />or listed in the near future. Of the Federally listed and proposed species, the four <br />which are known to occur in the vicinity of the project site are the bald eagle, <br />American peregrine falcon, whooping crane, and North American lynx. The other <br />species are unlikely to occur in the project area due to lack of suitable habitat <br />(Ireland, 1998; Ono and Wagner, 1983; Sogge, ,"t ai., 1997,: U.S. Department of <br />Commerce, 1993). <br /> <br />Bald eaqle. ThG bald eagle (Ha/iaeetus /eucocepha/us) is listed as a Federally <br />and State-threatened species. Historically, bald eagles have used a wide variety of <br />habitat types and nesring materials. Eagle nests are typically found in multistoried <br />stands with old-growth components. They are always found near bodies of water <br />which support a sufficient prey base. At least three important factors are thought <br />to influence bald eagle selection of wintering habitat: (1) the nearby presence of <br />productive forage areas, (2) seclusion from human disturbance, and (3) the <br />presence of dense stands of timber for diurnal perching and nocturnal roosting <br />(U.S. Army Corps of Engineers, 1996). <br /> <br />Historically, only two or three pairs of bald eagles nested within the State, <br />but the nesting pairs have recently increased to eight or nine each year. Colorado <br />is also a very popular wintering area, with an annual mid-winter population count <br />of 600 to 800 eagles. The San Luis Valley, in the southern part of the State, is <br />particularly desirable due to an abundant supply of fish and waterfowl from open <br />water as well as its high population of rabbits and rodents. <br /> <br />American oereqrine falcon. The American peregrine falcon (Fa/co peregrinus <br />anatum) is listed as a Federally endangered species. Peregrines nest on cliffs, <br />usually in mountainous areas on or near rivers or lakes (FWS, 1984). They once <br />bred in every state except Hawaii and Alaska. <br /> <br />9 <br />
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