Burung kicau (Songbirds)
Western Bluebird
Sialia mexicana
- epik
- 100 km/h
- Risiko rendah
Deeper blue, redder chest, mountain manners. Cavity-nests in old woodpecker holes.
- Populasi
- ~7.1 million (global breeding population)
- Habitat
- Open woodlands and forest edges (evergreen and deciduous, especially ponderosa pine), disturbed/burned or logged areas with snags for cavity nesting, farmland, orchards, and semi-open terrain; winters also in pinyon-juniper woods, mesquite, oak, and streamside woodland
- Fakta menarik
- Western Bluebirds cannot excavate their own nest cavities and rely entirely on old woodpecker holes or nest boxes, and genetic studies show about 45% of nests contain young sired by a male other than the resident mate.
- Sebaran
- Western North America: year-round in California, the southern Rockies, Arizona, New Mexico, and central Mexico (south to Oaxaca and Veracruz); breeding range extends north into the Pacific Northwest, British Columbia, and Montana, with northern populations migratory and southern populations largely resident
- Makanan
- Primarily insects (grasshoppers, caterpillars, beetles) taken by dropping to the ground from a perch or hawking in flight; shifts to fruits and berries (elderberry, grapes, juniper berries) in colder months
- Ukuran
- 0,17 m
- Bentang sayap
- 0,315 m
- Masa hidup
- 4 tahun
