Bay-breasted Warbler
Setophaga castanea
ORDER: PASSERIFORMES
FAMILY: PARULIDAE
IUCN Conservation Status: Least Concern
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A large warbler of the northern spruce forests, the Bay-breasted Warbler benefits from spruce budworm outbreaks when the caterpillars provide abundant food. Spraying to control the destructive outbreaks may have reduced populations of this warbler.