They look for shelter, food, and clean water.
Because Ohio provides the correct habitat for bluebirds. It also has what bluebirds need to make their nests(dry grasses, pine needles etc.).
Midgrass and shortgrass prairies in the American West.
Sometimes bluebirds face competition with other birds over nesting sites. Another problem bluebirds have is a lack of natural habitat. In areas that are more developed there are less natural cavities for them to nest in.
House sparrows and starlings often compete with bluebirds for places to build nests.
The most common type of bluebirds have and orange chest and blue back.
By protected habitat areas, and by providing nesting boxes.
They aren't. Loss of natural habitat has resulted in a lower population but they aren't endangered.
They like open places with scattered trees. For example lawns.
All animals live in the environment, in a niche of the environment called their habitat. Changes to the environment can destroy a habitat resulting in the species comprising that habitat to die out.
They look like small hairless birds.
Adults might be taken by snakes, falcons, cats, or other predators. Eggs could be eaten by birds such as jays and crows, snakes, raccoons, or skunks. Bluebirds have difficulty nesting where other more aggressive birds build nests. Exotics such as the European starling occupy nesting sites that bluebirds prefer. Bluebird habitat is orchard-type habitat, and humans have caused pressure on bluebirds by converting this type of habitat into other uses.