Pine Warbler

The Pine Warbler is closely tied to pine forests across the eastern United States, one of the few warblers that remains through much of its range in winter. Its feathers show a relatively plain olive-yellow tone above and dull yellow below, without the bold patterns of many warbler species, plus two whitish wing bars that stand out against the duller body plumage. This subdued coloring, combined with its habitat preference, helps narrow down feather identification.

Size and Shape

Feathers are typical small warbler feathers, somewhat plainer and less patterned than many congeners.

Color and Pattern

• Back and crown feathers: olive-yellow, unstreaked or only faintly streaked
• Underparts: dull yellow, fading to whitish on the belly
• Wing feathers: two conspicuous whitish wing bars
• Tail feathers: dark with white patches on the outer feathers

Distinguishing from Similar Species

Pine Warbler feathers lack the bright, saturated yellow of the Yellow Warbler and lack the bold yellow rump patch of the Yellow-rumped Warbler, appearing overall plainer and more olive-toned with the two whitish wing bars as a key feature.

Adult males show brighter olive-yellow upperparts and richer yellow underparts; females and immatures are duller and grayer, sometimes showing very little yellow. Juveniles can be quite plain and brownish. Adults undergo a complete molt after breeding, typically in late summer.

Pine Warblers are closely associated with pine forests and pine plantations across the eastern United States, from the Southeast north into New England and the Great Lakes region. Many populations are resident year-round in the Southeast, while northern breeders migrate short distances to winter in the southeastern United States, one of the few warblers to winter regularly within the continental US.

This warbler forages methodically along pine branches and trunks, gleaning insects from bark and needles, and is one of the few warblers that regularly eats seeds, including at feeders in winter. It builds a well-hidden cup nest high in pine trees, often difficult to locate. Its song is a musical trill, similar to that of a Chipping Sparrow but typically richer and more melodious, and its call is a soft chip note.