Eastern Bluebird look-alikes
Sialia sialis
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Open the appSeveral birds can be mistaken for the Eastern Bluebird. Compare the key differences below to confirm your sighting.
Birds to compare
Western Bluebird
Sialia mexicana
Key differences
Western Bluebirds have a rusty patch on their back (males) and a more extensive rusty breast that extends to the upper back, often with a blue throat. Eastern Bluebirds have a solid blue back and a rusty throat/breast that does not extend to the back.
Mountain Bluebird
Sialia currucoides
Key differences
Male Mountain Bluebirds are entirely sky-blue, lacking the rusty breast of the Eastern Bluebird. Females are duller, grayish-brown with blue only on the wings and tail, and lack any rusty coloration.
American Robin
Turdus migratorius
Key differences
While also a thrush with a rusty breast, American Robins are significantly larger, have a darker gray back (not blue), and a more upright posture. Their foraging behavior (running and stopping on lawns) is also distinct.
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