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