GAP Analysis Predicted Distribution Map

Black-throated Sparrow (Amphispiza bilineata)

Species Code: AMBI

Legend:
= Core Habitat
= Marginal Habitat

Breeding Range Map
The green area shows the predicted habitats for breeding only. The habitats were identified using 1991 satellite imagery, Breeding Bird Atlas (BBA), other datasets and experts throughout the state, as part of the Washington Gap Analysis Project. Habitats used during non-breeding months and migratory rest-stops were not mapped.

Metadata (Data about data or how the map was made)

Click to enlarge distribution map

Map with Breeding Bird Atlas records

Other maps & Information:

Breeding Bird Atlas
NatureMapping observations
during breeding season
NatureMapping observations
throughout the year

This species is a rare and local breeder in dry, shrubby areas of the central Columbia Basin in eastern Washington. Numbers vary annually; in some years, this sparrow is absent.

Good habitats were sparse vegetation, grasslands, shrub savannas, and shrublands in the Central Arid Steppe zone, limited to areas with known territorial males in l994. Its entire range in Washington was considered peripheral.

The few breeders in Washington represent the northern subspecies A. b. deserticola. Dawson (1908) reported a pair from Brook Lake (Douglas County) in May 1908. Since 1987, the species has been known to be a rare and local breeder in Washington south of Vantage along the Columbia River. However, in l994 singing male Black-throated Sparrows were reported from several sites in the central Columbia Basin. This northward expansion may have coincided with extreme drought conditions south of Washington.

Translated from the Washington Gap Analysis Bird Volume by Uchenna Bright
Text edited by Gussie Litwer
Webpage designed by Dave Lester