Laserfiche WebLink
<br /> <br />page-8 <br />dusky flycatchers were more abundant on mountain shrub habitats. <br />No differences were observed in broad-tailed hummingbirds, <br />olive-sided flycatchers, and Hammond's flycatchers. <br />Ground nesters - Ground feeders: <br />1985 <br />Collectively this guild had more uniformity in density <br />(P=0.38) than any of the other guilds. Three bird species <br />(vesper sparrows (P=0.01), song sparrows (P=0.008), and meadow <br />larks (P=0.007) were more numerous on the reclaimed sites than <br />other habitats. Hermit thrushes, the only species within the <br />guild that is associated with mature forests, were not observed <br />on the reclaimed sites but the density was not significantly <br />different (P=0.058) among habitats; they were most abundant in <br />the interior aspen sites. Dark-eyed juncos were more numerous <br />on the aspen sites but the density was not different (P=0.35) <br />among habitats. <br />1986 <br />This guild again had more uniformity in density (P=0.20) than <br />other guilds. Western meadowlarks (P=0.03) were more numerous on <br />reclaimed, and green-tailed towhees (P=0.05) were more numerous <br />on mountain shrub habitats. Dark-eyed juncos were more numerous <br />(P=0.03) on aspen, interior aspen, and. mountain shrub than on <br />reclaimed habitats. Hermit thrushes (P=0.06) and Townsend's <br />solitaires (P=0.21) were observed only in aspen habitats, whereas <br />vesper sparrows were observed only on reclaimed and mountain <br />shrub habitats. Few chipping sparrows were observed on mountain <br />shrub, and few vesper sparrows (P=0.06) on reclaimed and mountain <br />shrub habitats. Although not significant, more song sparrows <br />(P=0.25) were observed on reclaimed than other habitats. <br />Foliage Nesters - Pickers and gleaners: <br />1985 <br />Four of nine bird species of this guild were individually <br />more numerous in one or both of the aspen habitats, as was the <br />total number. No birds were counted on the reclaimed sites and <br />very few on the reclaimed-ed a sites. Warb~+*~ireos <br />(P=0.006), w-rum ~ bler (P=0.01), and western tanagers <br />(P=0.002) were more numerous- o_'°Tn zo~th aspen sites than reclaimed <br />sites. Cassin's finches (P=0.01) and western tanagers were more <br />numerous on aspen than on aspen-edge sites. Density of <br />MacGillivray's warblers, which inhabit low, shrubby habitats, had <br />considerable density variation within aspen and aspen-edge plots <br />and although more numerous in aspen hab_ i~ts_, the density was not <br />different (P=0.41) among habitats. Lazuli buntings (P=0.24) were <br />counted on both edge habitats but not on aspen or reclaimed <br />sites. Other birds within the guild were low density birds and <br />include solitary vireos, yellow warblers, and pine siskins. <br />