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  1. By: Sun, Yuan-Hsun - Wang, Ying (Ornithologist) - Lee, C F
    Type: Article
    In: The journal of raptor research
    Volume: 34
    Issue: 2
    Date: 2000
    Page Range: 102--107
    Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
  2. By: Sun, Yuan-Hsun - Wang, Ying (Ornithologist) - Arnold, Keith A
    Type: Article
    In: The journal of raptor research
    Volume: 31
    Issue: 4
    Date: 1997
    Page Range: 387--389
    Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
  3. By: Sun, Yuan-Hsun - Wu, Hsin-Ju - Wang, Ying (Ornithologist)
    Type: Article
    In: The journal of raptor research
    Volume: 38
    Issue: 4
    Date: 2004
    Page Range: 326--333
    Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-