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Bureau of Land Management's Decision Record and Environmental

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Jersey Valley Geothermal Development Project<br />

<strong>Environmental</strong> Assessment: NV063-EAO8-091<br />

3.5 WILDLIFE (INCLUDING THREATENED AND ENDANGERED SPECIES, SPECIAL STATUS<br />

SPECIES AND MIGRATORY BIRDS)<br />

3.5.1 Affected Environment<br />

A biological survey <strong>of</strong> portions <strong>of</strong> the Jersey Valley Unit Area <strong>and</strong> the entire transmission line<br />

corridor was conducted by Great Basin Ecology in May 2008 (GBE 2008). Subsequent to the<br />

May 2008 biological survey, additional areas <strong>of</strong> proposed surface disturbing activities were<br />

identified at the transmission line substation area. A survey <strong>of</strong> this area was conducted on April<br />

22, 2009.<br />

Similar wildlife species are likely to be found within the Jersey Valley Unit Area <strong>and</strong><br />

transmission line corridor. These species include a variety <strong>of</strong> small mammals, raptors, reptiles<br />

<strong>and</strong> insects <strong>and</strong> are identified <strong>and</strong> described below.<br />

Common mammalian species include the black-tailed jackrabbit (Lepus calfornicus), kangaroo<br />

rats (Dipodomys sp.), coyote (Canus latrans), badger (Taxidea taxus), <strong>and</strong> a variety <strong>of</strong> other<br />

small mammals (i.e. mice, voles, ground squirrels, etc) (GBE 2008).<br />

The Jersey Valley Unit Area does not have any known raptor nests nor does it provide suitable<br />

nesting habitat. One previously active prairie falcon nest <strong>and</strong> one previously active burrowing<br />

owl nest exist within 1 mile <strong>of</strong> the proposed transmission corridor <strong>and</strong> will be addressed further<br />

in the Special Status Species Section. No other known raptor nests or suitable habitat exists<br />

within the transmission corridor.<br />

Foraging habitat for raptors such as golden eagle (Aquila chrysaetos), red-tailed hawk (Buteo<br />

jamaicensis), common raven (Corvus corax), prairie falcon (Falco mexicanus), ferruginous hawk<br />

(Buteo regalis), <strong>and</strong> northern harrier (Circus cvaneus) may be found within the Jersey Valley<br />

Unit Area <strong>and</strong> along the transmission line corridor.<br />

A variety <strong>of</strong> reptiles have the potential to occur within the Jersey Valley Unit Area <strong>and</strong><br />

transmission line corridor. Such species include the western whiptail lizard (Cnemidophorus<br />

tigris), leopard lizard (Gambemia wislizenii) <strong>and</strong> western fence lizard (Sceloporus occidentalis).<br />

The Great Basin rattlesnake (Crotalus atrox) is likely to occur in the broken rocks <strong>and</strong> brush<br />

habitats on the east side <strong>of</strong> the Jersey Valley Unit Area.<br />

The BLM identified mule deer (Odocoileus hemionus), bighorn sheep (Ovis canadensis nelsoni)<br />

<strong>and</strong> pronghorn antelope (Antilocapra americana) habitat as potentially occurring within portions<br />

<strong>of</strong> the Jersey Valley Unit Area <strong>and</strong>/or the transmission line corridor, as described below.<br />

Mule deer<br />

Mule deer move between various zones from the forest edges at higher elevations to the desert<br />

floor, depending on the season. While the mule deer occupies almost all types <strong>of</strong> habitat within<br />

its range, it seems to prefer arid, open areas <strong>and</strong> rocky hillsides. Seasonal movements involving<br />

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