MacGillivray's Warbler

Female/immature MacGillivray's Warbler.
Female/immature MacGillivray's Warbler.

NPS Photo / Rachel Ames

Size: 4-6”
Description: Olive upperparts and yellow underparts. Males have a dark gray head, throat and upper breast, and white crescents above and below the eyes. Females are duller overall and have a pale gray-olive head, throat and upper breast with subtle white eye arcs.
Migratory Status: Summer residents of Rocky Mountain National Park.
Habitat: Breed in riparian shrublands, willow and alder thickets, and aspen forests to 10,000 feet and occasionally 12,000 feet.
Diet: Forage from the ground and low branches, and eat insects.

Last updated: June 24, 2018

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Mailing Address:

1000 US Hwy 36
Estes Park, CO 80517


970 586-1206
The Information Office is open year-round: 8:00 a.m. - 4:00 p.m. daily in summer; 8:00 a.m. - 4:00 p.m. Mondays - Fridays and 8:00 a.m. - 12:00 p.m. Saturdays - Sundays in winter. Recorded Trail Ridge Road status: (970) 586-1222.

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