Eastern Bluebird vs Western Bluebird

Eastern Bluebird

Sialia sialis

Small28 gWoodland

Eastern bluebirds measure 16–21 cm (6.3–8.3 in) long, span 25–32 cm (9.8–12.6 in) across the wings, and weigh 27–34 g (0.95–1.20 oz). Male bluebirds have a bright head, back, and wings. Their breast is a brownish red. Females are lighter with gray on the head and back and some blue on their wings and tail. In females, the breast is usually lighter in color than in males, and is more orange.

ID text from Wikipedia, CC BY-SA 4.0

Recording: Jonathon Jongsma · CC BY-SA 4.0

Photo: (c) Dan Vickers, some rights reserved (CC BY), uploaded by Dan Vickers · cc-by

Western Bluebird

Sialia mexicana

Small26 gWoodland

The western bluebird is a small stocky bird with a length of 15 to 18 cm (5.9 to 7.1 in). 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.

ID text from Wikipedia, CC BY-SA 4.0

Recording: Ryan Winkleman · CC BY-SA 4.0

Photo: unknown · CC BY 2.5

Photos and recordings are credited to their authors under the licence shown. Full profiles: Eastern Bluebird and Western Bluebird.