Golden-winged warbler (Vermivora chrysoptera) COSEWIC assessment and status report: chapter 1
Assessment Summary
Assessment Summary – April 2006
Common name: Golden-winged Warbler
Scientific name: Vermivora chrysoptera
Status: Threatened
Reason for designation: This small songbird has declined by 79% over the last 10 years according to Breeding Bird Survey data from Canada. The main threat appears to be competition and genetic swamping (hybridization) from the closely related Blue-winged Warbler, which is spreading north because of habitat change and perhaps climate change.
Occurrence: Manitoba, Ontario, Quebec
Status history: Designated Threatened in April 2006. Assessment based on a new status report.
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