Dendroica castanea ORDER: PASSERIFORMES FAMILY: PARULIDAE
IUCN Conservation Status: Least Concern
© Brian E. Small
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.
Song very high-pitched "seetzy, seetzy, seetzy."