Trumpeter Swan Reports25 - Wisconsin trumpeter swan recovery plan [PDF 4.43MB]Matteson, S. W., T. Andryk and J. Wetzel l986, 40 pp. 61 - Reintroduction of the Trumpeter Swan - 1988-89 [PDF 1.46MB] Matteson, S. 1989, 16 pp. 84 - Reintroduction of the Trumpeter Swan - Performance Report 1 July 1989 to June 1990 Matteson, Sumner 1992, 9 pp. 85 - Reintroduction of the Trumpeter Swan - Performance Report 1 July 1990 to June 1991 Matteson, Sumner 1992, 4 pp. Last Revised: June 14, 2007
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