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GAP Analysis Predicted Distribution Map

Grasshopper Sparrow (Ammodramus savannarum)

Species Code: AMSA

Click to enlarge Range map

= 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

Other maps & Information:
  • Breeding Bird Atlas
  • NatureMapping observations
    during breeding season
  • NatureMapping observations
    throughout the year

This sparrow is uncommon to common in eastern Washington in shrub-steppe habitats with significant grass cover. It is absent from dense tracts of sagebrush. It can be found below or at the lower limits of the Ponderosa Pine zone, though absent from the Methow valley.

Good habitat in core zones included all sparse vegetation, grassland, shrub savanna, shrublands, tree savanna, and Conservation Reserve grasslands in steppe zones of eastern Washington, plus similar habitats in the Ponderosa Pine zone in central and southern Spokane County.

Washington breeders represent the widespread western subspecies A. s. perpallidas. Grasshopper Sparrows were more widespread and numerous before the conversion of large tracts of shrub steppe to agriculture. It was found to be "rare and local" in the southeastern counties as of l977.

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