COSEWIC Assessment and Status Report on the Canada Warbler Wilsonia canadensis in Canada THREATENED 2008 COSEWIC status reports are working documents used in assigning the status of wildlife species suspected of being at risk. This report may be cited as follows: COSEWIC. 2008. COSEWIC assessment and status report on the Canada Warbler Wilsonia Canadensis in Canada. Committee on the Status of Endangered Wildlife in Canada. Ottawa. vi + 35 pp. (www.sararegistry.gc.ca/status/status_e.cfm). Production note: COSEWIC would like to acknowledge Carl Savignac for writing status report on the Canada Warbler, Wilsonia canadensis, prepared under contract with Environment Canada. This report was overseen and edited by Marty Leonard, Co-chair, COSEWIC Birds Specialist Subcommittee. For additional copies contact: COSEWIC Secretariat c/o Canadian Wildlife Service Environment Canada Ottawa, ON K1A 0H3 Tel.: 819-953-3215 Fax: 819-994-3684 E-mail: COSEWIC/
[email protected] http://www.cosewic.gc.ca Également disponible en français sous le titre Ếvaluation et Rapport de situation du COSEPAC sur la paruline du Canada (Wilsonia canadensis) au Canada. Cover illustration: Canada warbler — ©Illustration by Carl Savignac. ©Her Majesty the Queen in Right of Canada, 2008. Catalogue No. CW69-14/548-2008E-PDF ISBN 978-0-662-48880-4 Recycled paper COSEWIC Assessment Summary Assessment Summary – April 2008 Common name Canada Warbler Scientific name Wilsonia canadensis Status Threatened Reason for designation Most (80%) of the breeding range of this species occurs in Canada. While regional trends may vary, overall the species has experienced a significant long-term decline. This decline is particularly evident in the case of the species’ Canadian range and there is no indication that this trend will be reversed.