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The Nelson's Sparrow breeds in three distinct areas of Canada: saltmarshes along the coast of Quebec and the Maritime provinces, coastal marshes in southern Hudson's Bay and James Bay, and grassy marshes across the prairie provinces (Shriver et al. 2011). The Canadian population trend since about 1970 can best be estimated as a moderate increase, although precision of this estimate is poor. With an estimated 87% of the world's breeding population, Canada has a very high responsibility for this species' conservation. Nelson's Sparrow was assessed as Not at Risk in 1998 by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC). This species has been identified as a priority for conservation and/or stewardship in one or more Bird Conservation Region Strategies in Canada.
The lack of reliable monitoring data for this species makes it difficult to determine population status and assess conservation concerns. The major threat facing the Nelson's Sparrow in Canada, particularly in the Atlantic region, is the loss of the large, undisturbed areas of marshy habitats that they require for successful nesting (Erskine 1992, Shaffer et al. 1990, Shriver et al. 2011).
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.