|Text Source:|| Gerson, H. 1988a. Status Report on the Black Tern, Chlidonias niger, in Canada. COSEWIC. 56 pp.
Austen, M.J., M.D. Cadman and R.D. James. 1994. Ontario Birds at Risk: Status and Conservation Needs. Federation of Ontario Naturalists and Long Point Bird Observatory, Ontario. 165 pp.
|Ontario Map Source:||See text sources.|
|North American Map Source:||See text source.|
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