For researchers on feeding habits of marine mammals, sea birds and fishes

Created by Tsunemi KUBODERA: National Science Museum, Tokyo

Assisted by Hiroshi OIZUMIand Tomohito IMAIZUMI
English proofreader: Elaina M. JORGENSEN, Univ. of Washington


 Key for Identification of Lower Beaks   

 Data Sheets for Species      

 Estimation of Body Weight and Size

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English version produced on 2005/03/15: All Rights Reserved Kubodera, 2000
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