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Front matter OB Vol 19#1 Apr2001
Ontario Birds

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Book Reviews
Ron Tozer and Mike Street

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Cowbird Parasitism of House Finches at Guelph, Ontario
Rohan van Twest

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Rates of "Peent" Calls by American Woodcocks: the Seven Percent Solution
Michael M. Morris

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Progress Toward Colonial Waterbird Population Targets in Hamilton Harbour (1998-2000)
Ralph D. Morris, Cynthia Pekarik, D.V. Chip Weseloh, and James S. Quinn

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Remembering Clifford J MacFayden (1925-1999)
Christopher G. Harris

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Photo Quiz
Bob Curry

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Notes
George Fairfield, Bill Crins, and Ross D. James