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<br />C ~:io'_e~ green swallow. Tk:e violet-green swallow was the ~~~x~rx? ~evst ~.:,wx:,:nt <br />~->=cies obse~vec'. {aye-_age abundance of 6.0 individuals/Sc~) . This species <br />wfls also observed i~ all five vegetation types air' was ::iE securx' m,st ~sLwi- <br />dart species observed in the alfalfa field, grassland,yasture, iuniper and sage- <br />brush types. f:owever, in ali instances, this species was observed as a "flyover", <br />`oraaing on the flying insects above each vegetation type. Since the study <br />a,-ea is small and the passerine transects were placed within k :Wile of <br />each other, the same individuals were ombably observed aver each vegetation <br />type. Thus, the relative abvndance indices for the violet-green arallaw may <br />be inflated. The violet-green swallow exhibited a definite affinity for the <br />alfalfa field. <br />Cbn^:on crop. The coinron crow was the third frost abundant species okverved. <br />:.lthouch the co-:ron crow was rot found in high numbers in any habitat type <br />{1.6 individuals/lan over all transects), it did have a wide distribution <br />wrong habitats in the stazdy area. It was found in all vegetation types but <br />as a result of the low number of observations, an affinity for any one habi- <br />•,~ tat wes rot ao~t-ent. C.rcnas,like red-winced blackbirds, tend to occur in <br />°locks. <br />+:estern meadowlark. The western meadowlark is a year-round resident of the <br />stL.d_v area and was the fou_.-th Trost aburx7ant species observed during the breed- <br />ing bird surveys, averaging 1.5 ~individuals/Icn over all types. This species <br />was observed in the alfalfa field, grassland, pasture, and juniper habitats <br />and e_•ch~_,.ed an affinity for the juniper type. <br />wince= Passerine Habitat. A total of six avian species were observed during <br />t`~ winter passerine surveys in the A'ucla study area. The four passerine <br />species in decreasing order of relative abundance were: white-cra.,nied <br />s_~.ow, Oregon junco, wes~.ern meadowlark and raven. Non-passerine species <br />observed durino tie winter t_~-isects were the marsh hawk and ring-necked <br />c~:easant. <br />Riparian. Fbre passerine species were obser~ied in the riparian type than <br />t any other type surveyed during the winter passerine surveys (4). Accordingly, <br />`" t':is type had the highest species diversity index of any type su-veyed (0.91). <br />^_".~is haBixt r~so sa;i?orted the highest avian population (90.7 irx3ividuals/ <br />~4 ; u K 1 '! 1980. <br />• <br />(Revised August 2006) Attachment 2.04.10-10-41 <br />