The
Bell's Sparrow is a bird of arid, shrubby habitats of California and Baja
California. Until 2014, Bell's Sparrow and the very similar
Sagebrush Sparrow were considered one
species, called the Sage Sparrow. However, there are plumage and other
differences, and the Sagebrush Sparrow is generally grayer and paler than the
Bell's Sparrow. Range differences also exist, with the Bell's Sparrow
found primarily in California and Baja California, while the Sagebrush Sparrow
is found across many western states.
Habitat: Breeds
in open brushy country, in brushy stands of
coastal sagebrush and chapparal, as well as saltbush, chamise, and other low shrubs of the arid West. They winter in
open flats, deserts, and dry chaparral of the Southwest.
Diet: Eats many insects, especially during the summer
months. Will also feed on seeds.
Behavior: Primarily forages on the ground,
sometimes low in brush and shrubs.
Breeding: On their breeding grounds, the female builds
a cup-shaped nest of twigs and grasses, lined with fine grasses and sometimes
rootlets, feathers, hair, and lichen. The female lays 2-4 eggs, and
incubates them for about 2 weeks. The young fledge from the nest about 10
days after hatching.
Song: A high-pitched series of musical phrases
Migration: Those in western California are
permanent residents, but most birds move southward into the deserts of the
southwestern U.S. and northwestern Mexico for the winter.
Similar Species: Sagebrush Sparrow.
Visually Sagebrush Sparrow and Bell's Sparrow are
extremely difficult to distinguish from each other. Some Bell's Sparrows,
particularly those that breed near the coast in California, are darker overall,
but Bell's Sparrows further to the east are paler and are much more similar in
appearance to Sagebrush Sparrows. Range differences are the most obvious
means of distinguishing between the two species, but note there is overlap in
wintering birds in western Arizona and nearby locations.
Bird Feeders: Will occasionally come to feeders
for baby chicken scratch feed.
Conservation Status: They are still common in parts of
their range, but with habitat loss due to agricultural and urban land uses,
declines have occurred in much of their range.
2)
Handbook of the Birds of the World - Bell's Sparrow
3)
Sibley's Guide - Distinguishing Bell's and Sagebrush
Sparrows