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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Hartel, Karsten E. - Halliwell, David B. - Launer, Alan E. - Massachusetts Audubon Society.
    Publication info: Lincoln, MA, Massachusetts Audubon Society, 2002
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
  2. By: Halliwell, David B. - Massachusetts. Division of Fisheries and Wildlife.
    Publication info: [Boston], Massachusetts Division of Fisheries and Wildlife,
    Holding Institution: UMass Amherst Libraries