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- _ .. --- - <br />( 1?6?). '.;heir loud ttostly consists of bulbs, roots an3 stems or aquatic <br />i v~~:etation. ~masl;i.~at habitat in tie study area is Li:~~~~tl to the marshy <br />area in the ri~va i~ian habitat; accorcL'n•I ly, their distribution and abundance <br />is limited on tie study area. <br />Three Gunnison's prairie dog towns are located on the study area (A.ppendix <br />A, ~~p 2) . T.'uese towns w~rre formrrrly one large foam but were divided b}' <br />road constrsction and mining activities (personal communication, i•+ay 31, <br />1979, ~y Ka_ro). A total of 16 adult prairie dogs were observed during a <br />b1ac~-footed ferret survey of these towns in late May, 1979. ~linnison's - <br />prairie dogs inhabit open grassy and brushy areas at high elevations, <br />and are restricted in distribution to south-eastern Colorado (l.echleitner <br />1969). <br />AVLx'AL? `vA <br />Passerine Birds. Breeding and zesident wintering passerines in the Nucia <br />study azea were surveyed during eazly June, 1979 and January,1990 along 0.5 )an <br />transacts Ulacc-cl ~>ithin major vegetation types represented in the study area. <br />The census technique was designed to quantify passerine abundance; however, <br />all avian species, including raptors and same birds, observed along the <br />transecs t,~re counted. The results of the breeding and winterirg bird <br />surveys are provided on orxrguter print-outs in Appendix B, Part Z for each <br />of the five vegetation types sampled (grassland pasture, uplarrl sagebrush, <br />juniper, alfal_°a field, ahd riparian). These printouts provide relative <br />- abundance indices (number of individuals/3an) and macrohabitat affinities for <br />each species en~untered and Shan~n-iaeiner species diversity indices for <br />each habitat sampled. A list of all avian species .positively identified <br />for~the Vucla study area during this and previous studies is provided in <br />Table 1. <br />':1ao major topics are considered in the discussion of breeding and wintering <br />passerine birds. First, the relative i~rtance to avifauna of each habitat <br />type sampled is described. Determination of importance focuses on three <br />parameters: species diversity, ~rm~x~sition, and abundance. Second, the <br />ecru-trrence, distribution and abundance of in~ortant passerine species is <br />discussed. '_^portatut species are defined as those with a high relative <br />_~~_ <br />JUN 1 1 t980 <br />• <br />(Revised July 2006) Attachment 2.04.11-1-38 <br />