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By: Sproat, T M - Ritchison, G
Type: Article
In: The journal of raptor research
Volume: 28
Series:
Issue: 2
Date: 1994
Page Range: 93--99
Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
Subjects:
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By: Klatt, P H - Ritchison, G
Type: Article
In: The journal of raptor research
Volume: 28
Series:
Issue: 1
Date: 1994
Page Range: 60--60
Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
Subjects:
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By: Belthoff, James R. - Sparks, E J - Ritchison, G
Type: Article
In: The journal of raptor research
Volume: 27
Series:
Issue: 1
Date: 1993
Page Range: 8--15
Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
Subjects:
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By: Buhay, Jennifer E. (Jennifer Elizabeth), - Ritchison, G
Type: Article
In: The journal of raptor research
Volume: 36
Series:
Issue: 3
Date: 2002
Page Range: 194--199
Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
Subjects:
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By: Leyhe, J E - Ritchison, G
Type: Article
In: The journal of raptor research
Volume: 38
Series:
Issue: 1
Date: 2004
Page Range: 19--25
Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
Subjects:
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By: Ritchison, G - Cavanagh, Paul M.
Type: Article
In: The journal of raptor research
Volume: 26
Series:
Issue: 2
Date: 1992
Page Range: 66--73
Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
Subjects:
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By: Duguay, T A - Ritchison, G - Duguay, J P
Type: Article
In: The journal of raptor research
Volume: 31
Series:
Issue: 3
Date: 1997
Page Range: 260--266
Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
Subjects: