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<br />Fy~ <br />.i . <br />ground-nesting sparrows place their nests in dense grass, <br />which excludes the study site from good vesper sparrow <br />nesting habita~. <br /> <br /> <br />f <br />~,_ <br />Gossip's finches are residents of the Williams Fork <br />Mountains. None was seen-on the study site, but small <br />flocks of Cassin's finches forage over considerable distances. <br />Their occurrence at any one locality is irregular. The <br />study site provides excellent foragin5 habitat for this <br />species and it is expected that they-would utilize the site <br />for feeding irregularly throughout the year. It is doubtful <br />they breed on the site since they prefer coniferous forests <br />at higher altitudes for breeding. <br />2.6 Mammals <br />2.6.1 Introduction <br />Mammal species of the study site have been inventoried <br />by live trap censusing, indirect and direct observation, <br />literature revieco and personal conmunications. Results of <br />the live trapping census are presented in Table 2.4 and <br />show the plant communities inhabited by the five species <br />trapped. A detailed tabulation of the live-trapping results, <br />including date of capture, species, sex, age, and reproductive <br />status, is appended (Anpendi:c B-3). Table 2.5 lists those <br />species which probably occur on or near the study site and• <br />indicatds which species were observed on the site. The <br />following section discusses the occurrence, population biology, <br />habitat utilization and status of knowledge of these <br />mammals. <br />2.6.2 Insectivora (Shrews) <br />Only one species of insectivore, the vagrant shrew, <br />is reported to occur in the Williams Fork Diountai:.s <br />(Armstrong, 1972). No shrews were trapped during the <br />survey. The preferred habitat of the vagrant shrew is <br />wet meadows or willow thicket and as such, the study site <br />is to xeric for this species. However, small populations <br />of vagrant shrews may occur along Hayden and Dowden Gulches. <br />2.6.3 Chiroptera (Hats) <br />Seven species of bats are known to range into the <br />Williams Fork Mountains (Armstrong, 1972). Because the <br />natural history and zooaeogranhy of these chiropteran <br />species are poorly known (Armstrong, 1972), it is not known <br />which species may occur in the available habitats o° the <br />study site. None were observed during the faunal survey. <br />i <br />~'~ <br />c <br />l <br />t <br />t~ <br />.!a <br />X;~ <br />.~ <br />i~ <br />r+ <br />i <br />-i.. <br />:~ <br />v <br />f~ <br />-,.u <br />r~ <br />~iS <br />r~ <br />Lr <br />r~ <br />~~ <br />rf <br />i <br />r~ <br /> <br />