Mountain Bluebird look-alikes
Sialia currucoides
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Open the appSeveral birds can be mistaken for the Mountain Bluebird. Compare the key differences below to confirm your sighting.
Birds to compare
Western Bluebird
Sialia mexicana
Key differences
Male Western Bluebirds have rufous (reddish-brown) on the breast and flanks, and a rufous back, contrasting with the blue head and wings. Male Mountain Bluebirds are entirely blue. Female Western Bluebirds have more extensive rufous on the flanks and a duller blue on the wings and tail compared to the grayer female Mountain Bluebird.
Eastern Bluebird
Sialia sialis
Key differences
Male Eastern Bluebirds have a bright rufous breast and flanks, and a white belly, contrasting with the blue back and head. Male Mountain Bluebirds are entirely blue. Female Eastern Bluebirds also have a rufous breast, which is absent in female Mountain Bluebirds.
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