In North America, three bluebird species exist: Eastern, Western and mountain. Bluebirds are one of North America’s most beloved birds, and one of many songbirds that have suffered declining populations. They are colorful migratory birds that pepper the landscape of open fields, mountain ranges, parks and rural areas. Bluebirds can be discovered across all of North America and attracted to community parks through implanted bird boxes.
A bluebird can spot caterpillars and insects in tall grass at the remarkable distance of over 50 yards. Bluebirds hunt small insects in the summertime, such as spiders, worms, crickets and grasshoppers and eat wild, native fruits and plants during colder weather. Bluebirds can fly at speeds up to 45 miles per hour if necessary.
Bluebirds prefer to nest in an area that includes open country, scattered trees, and low sparse ground cover. They do not nest in heavily forested areas. They also do not like land that is completely open (no trees, shrubs, etc.). They start nesting as early as February – April for the first nesting. Sometimes later if first-time nesters or multiple nesters. Bluebirds typically use woven grass, pine needles, straw, hair and sometimes feathers.
Males may carry nest material to the nest, but they do not participate in the actual building. They spend much time guarding their mates during this time to prevent them from mating with other males. Usually Bluebirds will have two nestings, or in favorable conditions three. Only the female incubates the 4-6 eggs which she maintains at a temperature of 98 to 100ºF. They are then taken care of by both parents for approximately 3 weeks before they are able to fly on their own.