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Individuals of this species occurred almost exclusively as members of mixed-species flocks, occupying sites with greater densities of encino oak and ground cover and fewer pines than random sites. Most foraging observations were recorded in mid-story, encino oak. Commonly-observed foraging maneuvers were gleaning and sally-hovering. Eighty-three percent of foraging maneuvers were directed at the outermost portions of the oak foliage. Flocks in which Golden-cheeked Warblers occurred contained an average of 20.5 individuals and 12.9 species other than Golden-cheeked Warblers. The most frequently co-occurring species were Wilson's Warbler (Wilsonia pusilla), Black-throated Green Warbler (Dendroica virens), Hermit Warbler (D. occidentalis), Townsend's Warbler (D. townsendi), and Blue-headed Vireo (Vireo solitarius). The ratio of males to females observed was not substantially different from 1:1, and there was little evidence of sexual differences in habitat use. Golden-cheeked Warblers appeared to be tolerant of moderate levels of logging and grazing, but understory clearing to promote grazing for cattle may pose a significant threat to winter habitat availability.", "description": "9 p.", "publisher": { "@type": "Organization", "name": "Oxford Academic" }, "author": [ { "@type": "Person", "name": "King, David I.", "givenName": "David I.", "familyName": "King", "affiliation": [ { "@type": "Organization", "name": "USDA Forest Service Northern Research Station" }, { "@type": "Organization", "name": "Department of Environmental Conservation, University of Massachusetts, Amherst, MA, 01003, USA" } ] }, { "@type": "Person", "name": "Barrow, Wylie C. 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