Eastern Bluebird

The Eastern Bluebird is a small member of the thrush family known for its brilliant coloring and gentle, appealing presence in open countryside across the eastern United States. Males have deep blue upperparts, a rusty-orange throat, breast, and flanks, and a white belly. Females show a similar pattern but in muted tones, with grayish-blue wings and tail and a paler orange-buff breast.

Once in decline due to competition for nest cavities with introduced House Sparrows and European Starlings, Eastern Bluebird populations have recovered significantly thanks to widespread nest box programs, making them a conservation success story and a popular symbol of backyard bird conservation.

Key Field Marks

• Male: deep blue upperparts with a rusty-orange throat, breast, and flanks, white belly
• Female: duller grayish-blue above with a paler orange breast
• Plump, short-legged posture, often perched upright on wires, fences, or low branches
• Short, straight bill

Similar Species

• Western Bluebird: male shows blue on the throat (not orange) and often has a chestnut patch on the back, and the range is largely separate (western North America) with limited overlap.
• Mountain Bluebird: male is entirely sky blue without any orange, and female is grayer overall; found in more open, treeless habitat farther west.
• Indigo Bunting: male is entirely blue without any orange breast, and is much smaller with a stubby conical bill, unlike the bluebird's thrush-like shape.

Habitat

Eastern Bluebirds favor open habitats with scattered trees for nesting and perching, including fields, meadows, pastures, orchards, golf courses, and open woodland edges.

Range

They are found year-round or seasonally across the eastern United States, from the Great Plains to the Atlantic coast, and south into parts of Mexico and Central America in some populations.

Migration

Northern populations migrate south for winter, while many populations in the mid-latitude and southern parts of the range are year-round residents; wintering birds often form small flocks.

Behavior

Eastern Bluebirds often perch conspicuously on wires, fence posts, or low branches, watching the ground for insect prey before dropping down to catch it, a foraging technique called "drop feeding" or ground sallying.

Voice

The song is a soft, warbling series of low whistled phrases, often described as "chur-lee, chur-chur-lee"; calls include a soft, musical "tu-a-wee."

Feeding

Insects such as beetles, crickets, and caterpillars make up much of the diet during the breeding season, while berries and small fruits become more important in fall and winter.

Nesting & Breeding

Eastern Bluebirds are secondary cavity nesters, using old woodpecker holes, natural cavities, or nest boxes, which have been critical to the species' recovery from historical declines. They typically lay 3-6 pale blue eggs and often raise two or three broods per season.