Tree Swallow

A pair of Tree Swallows at nest site in Aspen tree.
A pair of Tree Swallows at their nest site in an aspen tree.

NPS Photo / Rachel Ames

Size: 4.5-6”
Description: Iridescent blue-green above and white below with dark gray wings and a thin black eye mask. Females are duller with more brown on the back.
Migratory Status: Summer residents of Rocky Mountain National Park.
Habitat: Primarily breed in aspen forests but also live in coniferous, montane and open habitats near water to 9,000 feet and occasionally 10,500 feet.
Diet: Forage in the air and eat mostly insects that they catch in flight. Can also eat berries.

Last updated: June 8, 2018

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Mailing Address:

1000 US Hwy 36
Estes Park, CO 80517


(970) 586-1206
Through winter, the Information Office is open 8:00 am–4:30 pm Mon–Fri. Recorded Trail Ridge Road status: (970) 586-1222.

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