VIWA

(redirected from Virginia's Warbler)
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AcronymDefinition
VIWAVirginia's Warbler (bird species Vermivora virginiae)
VIWAVietnam Inland Waterway Administration (est. 1956)
References in periodicals archive ?
Five species accounted for 59% of all Neotropical migrants captured (green-tailed towhee, Brewer's sparrow, Wilson's warbler, Virginia's warbler, and ruby-crowned kinglet).
west of the Rockies (in some cases, all the way to the Pacific Coast), you might see orange-crowned warbler, Nashville warbler, olive warbler, Virginia's warbler, Lucy's warbler, yellow warbler, myrtle warbler, Audubon's warbler, Townsend's warbler, hermit warbler, black-throated gray warbler, Grace's warbler, yellowthroat, yellow-breasted chat, MacGillivray's warbler, Wilson's warbler, and maybe American redstart.
Note also that daily survival rates at nonpreferred nest sites showed a consistent decline from species that nested high on the slope (i.e., Virginia's Warbler among ground-nesters, Green-tailed Towhees among shrub-nesters) to species that nested low on the slope (e.g., Orange-crowned Warblers among groundnesters, Hermit Thrushes among shrub-nesters) (X: = 68.7, P [less than] 0.0001 for ground-nesters, [[Chi].sup.2] = 10.7, P = 0.0048 for shrub-nesters).
Finally, Virginia's Warblers nested highest on the slope and nest sites had more locust and oak [ILLUSTRATION FOR FIGURE 3 OMITTED].
Nest sites of Orange-crowned and Virginia's Warblers were most often misclassified as nest sites of each other, while nest sites of Red-faced Warblers and Dark-eyed Juncos were most frequently misclassified as belonging to each other, with nest sites of Red-faced Warblers also being misclassified as those of Orange-crowned Warblers often (Table 1).
In particular, Virginia's Warblers chose nest sites with more locust and oak than the other species [ILLUSTRATION FOR FIGURE 5 OMITTED], but they also chose sites with an abundance of maple causing their misclassifications as Orange-crowned Warblers ([ILLUSTRATION FOR FIGURE 5 OMITTED] vs.
In general, Orange-crowned Warblers had more maple stems, Red-faced Warblers had more fir stems, Dark-eyed Juncos had more ground cover, and Virginia's Warblers had more locust stems in their nest patches compared to the other bird species regardless of the plant type that nests were placed under [ILLUSTRATION FOR FIGURE 6 OMITTED].
For example, Virginia's Warblers chose nest sites with more locust than at random and non-use sites [ILLUSTRATION FOR FIGURE 3 OMITTED] and compared to nests of other ground-nesting bird species [ILLUSTRATION FOR FIGURES 5, 6 OMITTED] and Virginia's Warblers chose microhabitats dominated by locust more frequently than any other dominant vegetation type [ILLUSTRATION FOR FIGURE 8 OMITTED].
Virginia's Warblers showed positive directional selection for numbers of locust stems in the nest patch ([ILLUSTRATION FOR FIGURE 10 OMITTED], Table 3), which typified preferred sites of Virginia's Warblers [ILLUSTRATION FOR FIGURE 8 OMITTED].
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