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1by Iowa Ornithologists' Union; Fuller, James L.Contributors: “...Youngblut, David...”
Published 1993
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3by Sinclair, JimContributors: “...Borts, Wyman; Youngblut, David...”
Published 1984
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4by Sinclair, JimContributors: “...Youngblut, David; Felsing, Paul...”
Published 1984
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