Migration: most birds in North America migratory. Major spring movement follows that of the winter wren; major fall movement precedes that of the Winter. Winter: generally as breeding, but with ...
Vocal and plumage variation in the Bewick’s wren is extensive ... buzzier. Songs of birds in the interior subspecies-group (eromophilus group) are simpler than those from the far West ...
DESCRIPTION: The medium tree finch is a chunky, wren-like finch. The male has a black head, grayish-brown upperparts, and whitish or yellowish underparts. The female has a grayish-brown head. HABITAT: ...
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