The Cape May Warbler is strongly associated with spruce budworm outbreaks in boreal forests — populations actually increase during these periodic insect eruptions. The breeding male is handsome with chestnut ear patches, yellow neck, and black-streaked yellow breast. It has a unique semi-tubular tongue adapted for sipping nectar from flowers on its Caribbean wintering grounds.
Habitat
Boreal spruce-fir forests in summer; forest edges in migration
Diet
Spruce budworms, other insects, nectar, and berries
How common
Common
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