Life List 101

Visually documented

Western Bluebird

Sialia mexicana

First photographed
July 9, 2026
First location
Colorado, United States
Conservation status
Least Concern
Western bluebird perched on a branch in Black Forest, Colorado.

Natural history

Species at a glance

Sialia mexicana

Overview

The Western Bluebird is a cavity-nesting thrush of open western woodlands. It watches from low perches for ground-dwelling prey and often moves in small family groups or flocks outside the breeding season.

Identification

Adult males are rich blue with a rusty-orange breast and upper back and a blue or gray belly. Females are gray-brown with a muted orange breast and blue in the wings and tail.

Range

Resident or seasonally migratory from southwestern Canada through the western United States and Mexico. Mountain populations often move to lower elevations in winter.

Habitat

Open pine and oak woodland, forest edges, burns, orchards, ranchland, parks, and savanna with natural cavities or nest boxes.

Diet

Insects and other small invertebrates in warmer months, with berries and other fruit important in fall and winter.

Order

Passeriformes

Family

Turdidae

Regions documented

North America

Photography by Brittany Templin

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Photography © Brittany Templin. Licensing is available.