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<br />. <br /> <br />F. THREATENED AND ENDANGERBD SPECIES <br /> <br />SPECIES ASSBSSMENT - Under requirements of Section 7 of the Endangered Species <br />Act (Act), Reclamation requested from the U.S. Fish and wildlife Service <br />(Service) a list of threatened and endangered species that may be present in <br />areas affected by the proposed action. The Service identified the following <br />federally-listed threatened or endangered species that may occur in the area <br />affected by the proposed action on AprilS, 1993: <br /> <br />SPECIES <br /> <br />Bald eagle (Haliaeetus leucoceohalus) <br />Peregrine falcon (~ oerearinus) <br />Mexican spotted owl (Strix occidentalis lucida) <br />Colorado squawfish (Ptvchocheilus lucius) <br />Razorback sucker (Xvrauchen texanus) <br />Humpback chub (Gila cvoha) <br />Bony tail chub (Gila eleaans) <br />Southwestern willow flycatcher (Eoidomax trailii extimus) <br />Flannelmouth sucker (Catostomus latioinnis) <br />Roundtail chub (Gila robusta) <br /> <br />STATUS <br /> <br />Endangered <br />Endangered <br />Threatened <br />Endangered <br />Endangered <br />Endangered <br />Endangered <br />Candidate <br />Candidate <br />Candidate <br /> <br />In December 1993, Reclamation requested the Service update federally protected <br />species occurring in the project area. In addition to the species listed <br />above, the Service requested Reclamation address additional species listed <br />below: <br /> <br />SPECIES <br /> <br />Black-footed ferret (Mustela niarioes) <br />Mesa Verde cactus (Sclerocactus mesae-verdae) <br />Southwestern willow fly catcher (Eoidomax trailii extirnus) <br />Spotted bat (Euderrna maculatum) <br />Black tern (Childonias niaerl <br />Loggerhead shrike (Lanius ludovicianus) <br />White-faced ibis (Pleaadis chici) <br />Ferruginous hawk (Buteo reaalis) <br />cronquist milkvetch (Astraaalus croauistii) <br />Schmoll milkvetch (Astraaalus schmollae) <br />Mesa Verde stickseed (Hackelia aracilenta) <br /> <br />STATUS' <br /> <br />Endangered <br />Endangered <br />Proposed* <br />Candidate <br />Candidate <br />Candidate <br />Candidate <br />Candidate <br />Candidate <br />Candidate <br />Candidate <br /> <br />. This species was upgrade from Candidate to Proposed (as endangered) status <br />since April 1993. <br /> <br />While the Act does not require federal agencies to address candidate species <br />in a biological assessment, Reclamation recognizes the importance of <br />addressing potentially threatened species to assist in preventing further <br />decline of the species ultimately requiring formal protection under the Act. <br />Of the several candidate species listed above, only the roundtail chub and <br />flannelmouth might be affected by a change in operation of McPhee Darn. The <br />other candidate species are not addressed since they are neither known to <br />occur within any habitat potentially affected by the proposed action or they <br />are not known to occur in either the Dolores or San Juan river floodplains. <br />Since the proposed action would affect federally protected species in both the <br />Dolores River and San Juan River basins, assessed impacts to species occurring <br />in each respective basin is described separately below. <br /> <br />The federally endangered black-footed ferret and the threatened Mesa Verde <br />cactus are not addressed in this assessment since they occur strictly in <br /> <br />10 <br />