Mountain bluebird

Mountain bluebird
Male
File:Sialia currucoides female.jpg
Female
Conservation status
Least Concern (IUCN 3.1)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Passeriformes
Family:	Turdidae
Genus:	Sialia
Species:	S. currucoides
Binomial name
Sialia currucoides (Bechstein, 1798)
Mountain Bluebird distribution:      Breeding range     Year-round range     Wintering range

The mountain bluebird (Sialia currucoides) is a medium-sized bird weighing about 30 g (1.1 oz) with a length from 16–20 cm (6.3–7.9 in). They have light underbellies and black eyes. Adult males have thin bills and are bright turquoise-blue and somewhat lighter underneath. Adult females have duller blue wings and tail, grey breast, grey crown, throat and back. In fresh fall plumage, the female's throat and breast are tinged with red-orange, brownish near the flank contrasting with white tail underparts. Their call is a thin 'few'; while their song is warbled high 'chur chur'. It is the state bird of Idaho and Nevada. It is an omnivore and it can live 6 to 10 years in the wild. It eats spiders, grasshoppers, flies and other insects, and small fruits. The mountain bluebird is a relative of the eastern and western bluebirds.

Feeding

These birds hover over the ground and fly down to catch insects, also flying from a perch to catch them. They mainly eat insects and berries. They may forage in flocks in winter, when they mainly eat grasshoppers. Mountain bluebirds will come to a platform feeder with live meal worms, berries, or peanuts.

Breeding

This species also can be a powder blue or with a gray chest.

Their breeding habitat is open country across western North America, including mountainous areas, as far north as Alaska. They nest in pre-existing cavities or in nest boxes. In remote areas, these birds are less affected by competition for natural nesting locations than other bluebirds. Mountain bluebirds are a monogamous breed. The male can be seen singing from bare branches. The singing takes place right at dawn, just when the sun rises. Females usually build the nests themselves. Eggs are pale blue and unmarked, sometimes white. The clutch size is four or five eggs. Young are naked and helpless at hatching and may have some down. Incubation normally last 14 days and the young will take about 21 days before they leave the nest. Both males and females fiercely protect the nest.

State bird

The mountain bluebird is the state bird of Idaho and Nevada.

Nest boxes

Mountain bluebirds are cavity nesters and can become very partial to a nest box, especially if they have successfully raised a clutch. They may even reuse the same nest, though not always. Mountain bluebirds will not abandon a nest if human activity is detected close by or at the nest. Because of this, they can be easily banded while they are still in the nest.

Similar species

• Western bluebird (Sialia mexicana)
• Eastern bluebird (Sialia sialis)

References

• All About Birds: Mountain Bluebird, Cornell Lab of Ornithology
• The Condor, Vol. 83, No. 3 (Aug., 1981), pp. 252–255

External links

• Mountain Bluebird Information and Awareness
• North American Bluebird Society
• Mountain bluebird videos, photos, and sounds at the Internet Bird Collection
• Mountain bluebird photo gallery at VIREO (Drexel University)