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Open Access

Peer-reviewed

Research Article

How Many Kinds of Birds Are There and Why Does It Matter?

  • George F. Barrowclough ,

    gfb@amnh.org

    Affiliation Department of Ornithology, American Museum of Natural History, New York, New York United States of America

    ⨯
  • Joel Cracraft,

    Affiliation Department of Ornithology, American Museum of Natural History, New York, New York United States of America

    ⨯
  • John Klicka,

    Affiliation Department of Biology and Burke Museum of Natural History and Culture, University of Washington, Seattle, Washington, United States of America

    ⨯
  • Robert M. Zink

    Affiliation School of Natural Resources, Nebraska State Museum, and School of Biological Sciences, University of Nebraska, Lincoln, Nebraska, United States of America

    ⨯

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Nov 23, 2016 (publication date)
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