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Visually Sexing Loggerhead Shrike (Lanius Ludovicianus) Using Plumage Coloration and Pattern
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Comment on "The latitudinal gradient in recent speciation and extinction rates of birds and mammals"

Joseph A Tobias1, John M Bates, Shannon J Hackett

  • 1Edward Grey Institute, Department of Zoology, University of Oxford, Oxford OX1 3PS, UK. joseph.tobias@zoo.ox.ac.uk

Science (New York, N.Y.)
|February 16, 2008
PubMed

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