Hi there! My mother, Camilla suggested that I write a series of posts about birds on my blog since I’ve been talking about them and learning about them. Please let me know if you have any bird books, CDs, or a website you’d recommend! Here is the part about Mountain Blue Birds.
Mountain Bluebirds are moderately small thrushes with round heads and straight, thin bills. Compared with other bluebirds they are slender and long-winged, with a long tail. Male Mountain Bluebirds are sky-blue, a little bit darker on the wings and the tail and a little bit paler on the belly, with white up under the tail. Females are pretty much gray-brown with tints of pale blue in the wings and the tail.
They occasionally show orange-brown throughout the chest. Mountain Bluebirds’ bills are completely black. Younger Mountain Bluebirds have fewer spots than the other young of little bluebirds. Unlike other bluebird species, Mountain Bluebirds often hover while foraging; they also pounce on their insect prey from an higher perch.
In the winter, the species often occur in large flocks wandering the landscape eating on berries, particularly some of those junipers. Mountain Bluebirds are mostly common in the West’s wide-open spaces, particularly at middle and higher elevations like mountains. They breed in native habitats such as prairie, sagebrush steppe, and even alpine tundra; anywhere with open country with at least a few trees that can provide nest cavities. They also readily take to human-altered habitats, often nesting in bluebird boxes and foraging in pastures.
The powder-blue male Mountain Bluebird is among the most beautiful birds of the West. Living in more open terrain than the other two bluebirds, this species may nest in holes in cliffs or dirt banks when tree hollows are not available. It often seeks its food by hovering low over the grass in open fields. They lay 5 to 6 eggs, sometimes 4 to 8 eggs.
Pale blue, unmarked (occasionally white) are their colors. Incubation is by female for about 13 to 17 days. Young birds: Both parents feed nestlings. Young birds leave the nest about 17 to 23 days after hatching, and are protected by their parents for another 3 to 4 weeks.
They have 2 breeds each year. Mountain Bluebirds feed heavily on insects, including beetles, grasshoppers, caterpillars, crickets, ants, bees, and others. They also eat some berries, including those of mistletoe, hackberry, and other plants. Berries are very important in their diet in the wintertime.
Sometimes interbreeds with the Eastern Bluebird where their ranges overlap. Nest: Apparently the female selects the site for the nest. The site is in a cavity, usually a natural hollow or old woodpecker hole in tree, or in a birdhouse. Sometimes nests in holes in dirt banks, crevices in cliffs or among rocks, holes in sides of buildings, old nests of other birds (such as Cliff Swallow or Dipper).
Nest in cavity (probably built by both genders) is a loose cup of weed stems, grass, twigs, rootlets, pine needles, and maybe even lined with animal hair or animal feathers. Mountain bluebirds migrate relatively late in the fall and early in the spring. Winter range varies from year to year, depending on the food supplies. Flocks sometimes wander east on the Great Plains, and lonely stray birds occasionally go as far as the Atlantic Coast.
The mountain bluebird is six to seven inches in length. The mountain bluebird breeds from east-central Alaska, southern Yukon and western Manitoba, south in the mountains to southern California, central and southeastern Nevada, northern and east-central Arizona, southern New Mexico and east to northeastern North Dakota, western South Dakota and central Oklahoma. In winters, the birds go from Oregon south to Baja California, Mexico and southern Texas, and east to eastern Kansas, western Oklahoma and central Texas. The males or females arrive at the breeding site first.
The mountain bluebird breeds in high mountain meadows with scattered trees and bushes and short grass. In winters, they live at lower elevations in plains and grasslands. The lovely mountain bluebird (Sialia arctcia) was made the official state bird of Idaho in 1931. The male mountain bluebird is a brilliant sky-blue, the female is gray with blue on her wings and tail.
The bluebird family is especially common in Idaho’s mountains. Idaho recognizes two bird symbols; the peregrine falcon is the official state raptor. The mountain bluebird is currently the state bird of Nevada. The Mountain Bluebird has a large range, estimated globally at 4,400,000 square kilometers.
Native to Canada, the United States, and Mexico, the mountain bluebirds prefer grassland, forest, and shrubland ecosystems. The global population of this bird is estimated at 5,200,000 individuals and does not show signs of decline that would necessitate inclusion on the IUCN Red List. For this reason, the current evaluation status of the Mountain Bluebird is Least Concern. The Mountain Bluebird is most likely to be confused with other bluebirds.
Male Mountain Bluebirds lack any reddish coloration on their underparts unlike Eastern and Western Bluebirds. Females are more difficult to separate. Eastern Bluebirds have a brownish throat and white belly while Mountain Bluebirds have gray throats and bellies. Western Bluebirds are browner on the breast than Mountain Bluebirds and have thicker bills.
Male Mountain Bluebirds might be confused with other all blue birds like Indigo Buntings and Blue Grosbeaks but these birds have much thicker, conical bills.