The Varied Thrush is well covered by the Breeding Bird Survey (BBS) in much of its range, although coverage is poor in high-elevation habitat in southern British Columbia and more remote areas of the breeding grounds in northern British Columbia, Yukon, and Northwest Territories. BBS results indicate an estimated 45% loss of abundance in the national population since the early 1970s; the reliability of this assessment is considered to be medium. The Varied Thrush is below the lowest acceptable level relative to its national population goal (see BBS Canada graph below).
Additional information on: Breeding Bird Survey (BBS) - Canadian analysis
