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<br />003115 <br /> <br />San Juan River \,ro~ect (Cont' d) : <br /> <br />River System. Furthennore, Water and Power Resources Service would <br />conduct one-year studies of the fisheries resource, recreational use, <br />reservoir habitat, riparian habitat, and a two-year study of the <br />benthos. These studies would be compiled in a single document that <br />clearly spelled-out all of the proposed projects and their impacts <br />to the river. To date, only some of these studies have been completed. <br />Furthennore, consultation has been undertaken ina piecemeal fashion. <br /> <br />Air Force Study: <br /> <br />Reactions of peregrine falcons and other birds of prey to sonic booms <br />and low level jet flights are largely unknown. Last year the U.S. Air <br />Force entered into an Endangered Species Act consultation with Fish and <br />Wildlife Service and agreed to identify falcon responses to military <br />aircraft. Wildlife biologists hope to detennine during the two-year <br />study if these fli~hts cause alann reaction or eyrie (nest) abandonment <br />during the peregrine's breeding season. If falcon-aircraft conflicts <br />are identified, the Fish and Wildlife Service will recommend guidelines <br />to avoid conflicts. <br /> <br />The first part of the study TAC will coordinate its training flights <br />with researchers to fly over prairie falcon nests, because prairie <br />falcons are much more common than peregrines and are not endangered. If <br />overflights or sonic booms do not cause disruptions, TAC will then begin a <br />series of flights over peregrine eyries. Wildlife biologists will <br />observe two or more peregrine falcon eyries after the young are at least <br />ten (10) days old. Biologists will study the falcons' reproductive cyc~e <br />and their reactions to sonic booms and to over-flights. <br /> <br />Bald Eagle Productivity: <br /> <br />In Arizona, ten bald eagle nest sites are known. This year eight were <br />occupied but only three nests successfully fledged young. <br /> <br />A bald eagle pair built a nest in New Mexico in 1979. They were unsuccessful <br />at rearing young that year and did not return to the nest site this year. <br /> <br />Listing: <br /> <br />The following species have been listed in Arizona since January 1980: <br /> <br />1. Six cacti without critical habitats: <br /> <br />a. Echinocactus horzonthalonius var. nicho11ii <br />b, Echinocereus triglochidiatus var. arizonrus <br />c. 'Pediocactus bradyi <br />d. P. peeblesianus var. paeblesianus <br />e. P. sileri <br /> <br />C-51 <br /> <br /><-',,"-" _....,"" <br />