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<br />001971 <br /> <br />shows a general preference for coarser substrates such as gravel and, when available, cobble. <br />Spawning: April-June. <br /> <br />The federally listed endangered Colorado Pikeminnow (Ptychocheilus Lucius) and razorback <br />sucker (Xyrauchen texanus) have historically occurred in the San Juan River downstream from <br />the confluence of the Animas River. Both of these sp~ies are adapted to large, turbid, and swift- <br />flowing rivers in the San Juan River system where they inhabit shaded pools and eddies <br />(Colorado Pikeminnow) or deep, swift-moving water in channels (razorback sucker). <br /> <br />The proposed project would not directly affect the San Juan. However,the~~ervice believes that <br />one of the major causes of decline for these species is the effect of:,:W~ter depletion from the <br />Colorado River and its tributaries, including the San Juan Riv~I>:(Retl~ation 1999). These <br />three proposed water contracts represent historic usages (occurring pri()l"tQJanuary 1, 1983; <br />Service 1998) and will not utilize nor deplete any new qqWltHieSi.,out of the'Mancos River system <br />and the San Juan River Drainage. These historic depl~tfons are included inihe.$ervices baseline <br />for the San Juan River .. 7, " <br /> <br />It is recognized that any depletion from the San Juan Rii~tiss()nsidered an adverse effect on the <br />endangered fish, however, there is no new depletion of flaws~s a result of the Carriage <br />Contracts. Historical depletions of this Wij1~r would continuK.!t~lamation has committed to <br />operate Navajo Dam to meet flow recornri1err4~tipns for the endangered fish. Operation plans <br />have included existing depletions, includingJhe~aepl~tions that wotiXd.occur with the proposed <br />carriage contracts. Implementation of the proposedc~l:tg~,contrqcts will not cause any addition <br />adverse affect on the Colorado Pikeminnow ani[! r@otbaclcs4,ql\~r. <br />-'.'<.'-. ~ -"'-' ."~..- .-. <br />. "~"-'. - . ' ',~"-:.- <br />,,:- '~:- :~, <~-- ::.~ 1 ' : ,. , <br /> <br />3.6.2.2 Federally Th,..~tened <br /> <br />'~~\~:.\ ~ <br /> <br />-~ -.-. <br />;";:fi,~' <br />~.:'~\?{ <br /> <br />3.6.2.2.1 Bald Eagle <br /> <br />,;~i;)-'t~::.=., <br /> <br />';;,~-:; <br />....",,;:c.-,.... <br /> <br />", .' ; ---." '-', - ~ ..~, - .'. . - - . ,"' " . '- ;-, " <br />..'.....-.................................... ....-....... .. - --............... <br />The Bald :sagle:wa~rmti'ginally'1i,$t~~ in 1961~aIiH is currently Federally and state listed as <br />endang~l"~d in both ColQj:;ijpP and'~~~ Mexico. Nest sites typically occur near open water and <br />are g~J.le~~l1Y found in mtit4~~.heterog~e.~pUs stands of multi storied trees. Historically, only two <br />to tnreepalt'&:of bald eagles:ij~ted in Colorado, but nesting pairs have recently increased to eight <br />or nine each;,*~f.!!' Winter ha~tat typically includes areas of open water. Here they feed on fish, <br />dead or cripple'<l:)~mals sucq;'~s waterfowl or winterkilled deer and elk as well as small <br />mammals. In surii1ll~~they f~~a mainly on fish. General breeding season for the Bald Eagle is <br />January to August. "Eh~,;:h~l;)itat on the Mancos River is poor quality for bald eagle use <br />principally because the:~exlsting riparian zone does not support the proper vegetation for nesting, <br />roosting or perching, and an adequate prey base is not present. (Reclamation 1995) <br /> <br />Reclamation believes that the implementation of these water carriage contracts will have no <br />effect upon the Bald Eagle or upon its critical habitat. <br /> <br />3.6.2.2.2 Mexican Spotted Owl <br /> <br />20 <br />