Setophaga castanea
Length: 5-6 in Wingspan: 8-9 in Weight: 0.3-0.6 oz
Identification:
Rufous breast streak and cap. Black mask. Gray back with black streaks. Buff on neck and undertail.
Distribution:
Range map by Neotropical Birds
Cool Facts:
The Bay-Breasted Warbler feeds primarily on spruce budworms on its breeding grounds. Populations are more cyclical than other warblers, becoming more abundant during spruceworm outbreaks.
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References:
Bird on the Move 