Description: Males are sky-blue overall with darker wings and tail, lighter underparts and white under the tail. Females are mostly gray-brown with tinges of pale blue on the wings and tail.
Migratory Status: Spring and summer residents of Rocky Mountain National Park.
Habitat: Nest in tree cavities and prefer mountain grasslands and sage shrublands adjacent to open coniferous forests, aspen forests and the alpine tundra to 10,000 and occasionally 13,000 feet.
Diet: Eat mostly insects including beetles, grasshoppers, caterpillars and spiders. They forage by perching on shrubs or tall grasses and often hover before catching prey on the ground or in mid-air.
Last updated: July 5, 2019