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<br />km). The white-crvwnc>d sparrow was~the Trost abundant species ena~untered <br />(58.7 individuals/)rnt) and showed an affinity for t`tis type. <br />The song sparrow was observed only is the riparian habitat during the winter <br />surveys and was observed in sufficient numters to indicate an affinity for <br />this type . i7~e other species which s}>o~d a<1 affinity for ribarian habitats <br />during winter surveys was the Oregon juror. <br />Alfalfa field. Three passerine species were observed in the alfalfa field <br />during the winter surveys: western ;cadawlark, white-crowned sparrav and <br />raven. The western meadowlark and white-crowned sparrow were the most abundant ` <br />passerines encountered with relative abundance indices of 35.3 and 12.0 <br />individuals/)cr, respectively. This habitat supported the second highest <br />total avian population (50.0 inoividuals/San) and the second highest species <br />diversity index (0.78). The western meadowlark was observed only in the <br />alfalfa type during the winter transacts and exhibited an affinity for this <br />type. <br />Juniper. The juniper vegetation type supported three passerine species <br />during the winter surveys: Oregon junco, white-exenmed sparrow and raven. <br />The former species was the imst abundant species encountered (15.3 individuals/ <br />km). This habitat type supported the third highest total. avian population <br />(17.3 individuals/)an). Three species diversity index (0.43) was <br />relatively low because mist observations were of the Oregon junco. Accordingly, <br />the Oregon junco exhibited an affinity for the juniper type. <br />Grassland pasture. The only twv passerine species encountered in the grassland <br />pasture habitat during the winter passerine transacts were the raven and ccn;.con <br />crag. This habitat supported the second lost total avian population (3.3 <br />individuals/)a:~. The Shannon-+~einer species diversity index was 0.50. <br />Upland sagebrush. The raven was the only species encountered along the sare- <br />brush transacts d.u-ing the winter surveys. Accordingly, the Shanrx+n-cieiner <br />' diversity index was 0.0. This habitat sum Totted the lo..~st total avian porru- <br />lotion (2.0 irriividuals/ian) during the winter survey. <br />-35- <br />~~p 1 ~ 1980 <br />• <br />(Revised July 2006) Attachment 2.04.11-1-42 <br />