Bay-breasted Warbler

Plate 69
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Bay-breasted Warbler
Setophaga castanea
LCIUCN Status
Guide
This is a characteristic warbler of spruce forest in eastern Canada in summer. Its numbers vary from year to year, and are likely to increase quickly during population explosions of the spruce budworm or other forest pests. This species forages rather slowly compared to most warblers, moving deliberately among the branches. The male Bay-breasted Warbler is unmistakable in spring but goes through a striking transformation in fall, becoming a greenish 'confusing fall warbler.'
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