Those species that commonly breed in cooler, more northerly, mainly coniferous forests, such as Blue-headed Vireo, Winter Wren, Magnolia Warbler, Black-throated Green Warbler, Blackburnian Warbler
, Canada Warbler, Dark-eyed Junco, and Purple Finch, were found in pine plantations, mixed pine-deciduous woods, and the hemlock-deciduous forests in the gorges and ravines of the Pierson Creek and Stebbins Run watersheds.
Four species (bay-breasted warbier, blackburnian warbler
, black-throated green warbler and golden-crowned kinglet) were significantly less abundant in tributary buffer strips than in tributary references; black-and-white warbler was significantly more abundant in tributary buffers than in tributary references (Table 3; F = 11.
Like bright jewels flitting about from tree limb to tree limb, yellow-rumped, black-throated blue, orange blackburnian warblers
and American redstarts add their colors to the palette of the woods.
Preliminary surveys suggest conifer-dwelling birds--including breathtaking Blackburnian warblers
and tiny winter wrens--have all but disappeared, replaced by robins and goldfinches.
Some of the birds that stick to old-growth forests include black-throated blue warblers, Blackburnian warblers
, and the solitary vireo.
Several neotropical songbirds--black-throated green warblers, blackburnian warblers
, Canada warblers, and blue-throated (solitary) vireos--use hemlock stands largely or exclusively.
For example, the same large spruce tree can be home to several species of warblers: magnolia warblers will nest near the ground; black-throated green warblers will inhabit the central part of the canopy; and blackburnian warblers
will nest in the very top branches.