The early days of summer are busy ones for Eastern bluebirds.

Then the native birds like eastern bluebirds have a problem.

You can shape some of your nest boxes down so you'll attract eastern bluebirds.

However, the situation could be worse without nest boxes to help eastern bluebirds find a safe location.

That kind of bird is a strong competitor fighting against eastern bluebirds for natural cavities.

An estimated 10 million Eastern bluebirds live in North America.

The open fields are home to woodcocks, meadowlarks and eastern bluebirds.

When approached by a predator, male eastern bluebirds make a song-like warning cry.

Eastern bluebirds all but disappeared from my farm in central Maryland decades ago, their numbers reduced by pesticides and habitat loss.

He said he has seen as many as eight pairs of Eastern bluebirds along his nature trails this year.

Eastern bluebirds, New York's state bird, were abundant throughout the state at the turn of the century.

Make the hole just large enough for eastern bluebirds, but too small for house sparrows and starlings.

Eastern bluebirds are very social birds.

"Eastern Bluebirds like the wide open spaces of a golf course, and hopefully our nest boxes will entice them back.

Bird watchers who have built nesting boxes for Eastern bluebirds find their nests filled with house sparrows instead.

Eastern bluebirds prefer to nest in woodlands where cavity holes excavated by a previous species will serve as their home.

A pair of Eastern bluebirds, long absent from the area, returned in 1989 to establish a family in what had become, for them, an ideal habitat.

Eastern bluebirds were busily gathering dead grasses and small twigs for nesting in the hopeful sunshine.

ON an Indian summer day, scores of brilliantly colored Eastern bluebirds perched in a long line along a telephone wire.

But today, Eastern bluebirds thrive in Ward Pound Ridge Reservation.

No holes, no flying squirrels (or eastern bluebirds, or great-crested flycatchers or any other cavity-dwelling creatures).

The American elderberry attracts 33 species, including red-bellied and red-headed woodpeckers, Eastern bluebirds, cardinals and robins.

The heaviest concentration of Eastern bluebirds in New York is in the Hudson River Valley.

Though Eastern bluebirds are unfamiliar to most city dwellers, half a century ago they were fairly visible in eastern Queens and on Long Island.

Other winged creatures in O'Neil Woods include eastern bluebirds, which nest in boxes maintained by staff and volunteers throughout the park.

Eastern bluebird (sialia sialis) is a Turdidae.