Appearance: Eastern bluebirds are small birds about 7″ long, royal blue, orange throat & breast, white belly & undertail. Female is similar but with more muted colors
Diet: Insects & spiders in spring/summer. Small fruit in Fall/Winter.
Feeder food: Suet, sunflower seeds, dried fruit, jelly.
Habitat: Wide-open spaces, fields, meadows.
Nesting:
- Nest: Cavity nesters. The male bluebird determines the nest site (an old woodpecker hole in a tree or manmade nestbox), but the female is the one who builds the nest. She keeps the nest for multiple broods.
- Brood: 2-7 broods/season
- Clutch: 4-5 eggs/brood
- Egg color: Pale blue eggs (sometimes white) with no blemishes or discoloration.
- Egg size: 0.9 inches by 0.8 inches
- Incubation: 11-19 days
Migration: Some eastern bluebirds are migrators. While many remain in their year-round range all year long, some migrate north for breeding and raising their young then head south in winter back into the year-round range or further west into Colorado, New Mexico, and western Texas.
Year-round range: The US states south and east of Nebraska, Mexico, and Central America.
Breeding range: Northwest Nebraska, South Dakota, North Dakota, Minnesota, the northern half of Wisconsin & Michigan, New Hampshire, Maine, and the southern part of these Canadian provinces: Saskatchewan, Manitoba, Ontario, and Quebec.
Winter range: Eastern Colorado, New Mexico, western Texas, and northeast Mexico.
Range Map