GAP Analysis Predicted Distribution Map

Bewick's Wren (Thryomanes bewickii)

Species Code: THBE

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

The Bewick's Wren is common at low elevations in western Washington in shrubby habitats, especially in residential and agricultural areas. It also occurs in clearcuts and along rivers and wetlands. It is local in eastern Washington in similar habitats along the Columbia River to the Tri-Cities, along the Yakima River to Yakima, east along the Snake and Walla Walla Rivers, and on the Little Spokane River.

Good habitat in core zones included all habitats except bare ground, mid-to-high density development, mid-late-seral conifer forests, and estuaries below the Silver Fir zone. In eastern Washington, peripheral in low-to-mid-density development and wetlands in all steppe zones and the Ponderosa Pine zone but only along the rivers named above.

In eastern Washington, the Bewick's Wren has been expanding its range eastward since l953 when the only known population was a small group around Toppenish Creek and the Yakima River, Weber & and Larrison (l977) reported BewickÕs wintering in southeastern Washington. In Walla Walla County, the BewickÕs wren is most known from drainages of the Western Blue Mountains. It is possible that fluctuations in eastern Washington populations are correlated to the severity of winters.

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