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A photo of a Western Bluebird (Sialia mexicana), male
Western Bluebird, Male

Western Bluebird

Sialia mexicana

The western bluebird (Sialia mexicana) is a small North American thrush and was formally described by the English naturalist William John Swainson in 1832. The adult male is bright blue on top and on the throat with an orange breast and sides, a brownish patch on back, and a gray belly and undertail coverts. The adult female has a duller blue body, wings, and tail, a gray throat, a dull orange breast, and a gray belly and undertail coverts. Both sexes have a thin straight bill with a fairly short tail. Immature birds have duller colors than the adults, and have spots on their chest and back. The western bluebird can be readily distinguished from the two other species in the bluebird genus. The western bluebird has a blue (male) or gray (female) throat, the eastern bluebird (Sialia sialis) has an orange throat, and the mountain bluebird (Sialia currucoides) lacks orange color anywhere on its body.
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Photos

Sightings

A map showing the sighting location
Profile picture for Ian Vickers
Ian Vickers
Tuesday 19 Sep 2023 - 9:31pm
United States
A map showing the sighting location
Profile picture for Ian Vickers
Ian Vickers
Monday 18 Sep 2023 - 6:37pm
United States
A map showing the sighting location
Profile picture for Cadance HA
Cadance HA
Sunday 17 Sep 2023 - 2:56pm
United States
A photo of a Western Bluebird photographed in Quarry Lakes Regional Park United States
Profile picture for Winnie Poon
Winnie Poon
Wednesday 13 Sep 2023 - 9:13pm
United States
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