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In Canada, the Black-throated Gray Warbler is restricted to southwestern British Columbia, where it is monitored by the Breeding Bird Survey (BBS). BBS results suggest about a 50% decrease in the abundance of this species since about 1970, although the precision of these results is low. This species has been identified as a priority for conservation and/or stewardship in one or more Bird Conservation Region Strategies in Canada.
The Black-throated Gray Warbler breeds in mixed forests of various ages. Reductions of diverse early-seral forest as a result of forest management that favours conifer plantations may have negative effects on the population (Betts et al. 2010). The species’ limited distribution and habitat use in Canada overlaps with areas that are under significant development pressures, which will continue to result in permanent habitat loss.
Environment and Climate Change Canada and partners have developed Bird Conservation Region Strategies in each of Canada’s Bird Conservation Regions (BCRs). In these strategies, selected species are identified as priorities for one or more of the following reasons:
Select any of the sub-regions below to view the BCR strategy for additional details.