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Sage Thrasher

Oreoscoptes montanus

Length: 8.5 inches Wingspan: 11.5 inches Seasonality: Summer
ID Keys: Grayish upperparts, white underparts with heavy streaking, yellow eyes, short straight bill

Sage Thrasher - Oreoscoptes montanusThe aptly named Sage Thrasher is indeed a denizen of sagebrush habitats, and is rarely found outside that habitat during the summer breeding season.  They are restricted to the extreme western edge of South Dakota in the few remaining areas of suitable sagebrush found in the state.  Extremely shy birds, they are likely to move into dense cover or to run away under the sagebrush canopy when approached.

Habitat: Breeds almost exclusively in sagebrush habitats.  Can be found in other brushy or semi-open habitats in winter and in migration, especially in areas where berries are readily available.

Diet: Primarily feeds on insects in summer months in South Dakota, especially grasshoppers, caterpillars, and beetles. Will also feed on fruits and berries, especially in the winter.  

Behavior: Primarily forages on the ground, although Sage Thrashers will also feed up in low bushes and scrub.

Nesting: June and July

Song: Repeated clear warbling phrases.  Click here to listen to the Sage Thrasher's song.

Migration: Summers throughout sagebrush habitat in the western United States.  Migrates southward in the winter to the southwestern U.S. and Mexico.

Interactive eBird Map: Click here to access an interactive eBird map of Sage Thrasher sightings

Similar Species: Curve-billed Thrasher.  Possibly confused with juvenile Northern Mockingbirds

Conservation Status: Like other species dependent upon sagebrush habitats, their numbers have diminished with the clearing and conversion of sagebrush habitats to rangeland or other land cover types.  However, they are still found across a broad geographic range and are relatively common in parts of that range. The IUCN considers the Sage Thrasher to be a species of "Least Concern".

Further Information: 1) WhatBird - Sage Thrasher

2) BirdWeb - Sage Thrasher

3) Audubon Guide - Sage Thrasher

Photo Information: Photo taken on July 27th, 2009 - Antelope Island, near Salt Lake City, Utah - Terry Sohl

Additional Photos: Click on the image links below for additional Sage Thrasher photos.

 

Click on the map below for a higher-resolution view
Sage Thrasher - Range Map
South Dakota Status: Uncommon and local summer resident in portions of the extreme western part of the state.

Additional Sage Thrasher Photos
Click for a higher-resolution version of these photos
 Sage Thrasher - Oreoscoptes montanusSage Thrasher - Oreoscoptes montanusSage Thrasher - Oreoscoptes montanus