-
By: Clark, William S.
Type: Article
In: Bulletin of the African Bird Club
Volume: 6
Series:
Issue: 2
Date: 1999-09
Page Range: 115--116
Publication Info: Cambridge, African Bird Club, 1994-
Subjects:
-
By: Clark, William S. - Patten, Michael A - Wilson, John C
Type: Article
In: Bulletin of the British Ornithologists' Club
Volume: 129
Series:
Issue:
Date: 2009
Page Range: 254--255
Publication Info: London, British Ornithologists' Club, 1893-
Subjects:
-
By: Clark, William S. - Clarke, Roger
Type: Article
In: Bulletin of the British Ornithologists' Club
Volume: 118
Series:
Issue:
Date: 1998
Page Range: 52--54
Publication Info: London, British Ornithologists' Club, 1893-
Subjects:
-
By: Clark, William S.
Type: Article
In: Bulletin of the British Ornithologists' Club
Volume: 132
Series:
Issue: 4
Date: 2012
Page Range: 295--298
Publication Info: London, British Ornithologists' Club, 1893-
Subjects:
-
By: Clark, William S. - Schmitt, J
Type: Article
In: The journal of raptor research
Volume: 27
Series:
Issue: 1
Date: 1993
Page Range: 95--95
Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
Subjects:
-
By: Clark, William S.
Type: Article
In: Bulletin of the African Bird Club
Volume: 7
Series:
Issue: 1
Date: 2000-03
Page Range: 13--17
Publication Info: Cambridge, African Bird Club, 1994-
Subjects:
-
By: Clark, William S. - Schmitt, N. John
Type: Article
In: Forktail
Volume: 8
Series:
Issue:
Date: 1993
Page Range: 7--9
Publication Info: Oxford,
Subjects:
-
By: Clark, William S. - Witt, Christopher C
Type: Article
In: The Wilson journal of ornithology
Volume: 118
Series:
Issue: 1
Date: 2006
Page Range: 42--52
Publication Info: Lawrence, KS, Wilson Ornithological Society, 2006-
Subjects:
-
By: Clark, William S. - Edelstam, Carl
Type: Article
In: Bulletin of the African Bird Club
Volume: 8
Series:
Issue: 2
Date: 2001-09
Page Range: 138--139
Publication Info: Cambridge, African Bird Club, 1994-
Subjects:
-
By: Clark, William S.
Type: Article
In: Bulletin of the African Bird Club
Volume: 8
Series:
Issue: 1
Date: 2001-03
Page Range: 59--59
Publication Info: Cambridge, African Bird Club, 1994-
Subjects:
-
By: Farquhar, Charles Craig - Clark, William S. - Wright, Robert G. - Coello, M
Type: Article
In: The journal of raptor research
Volume: 28
Series:
Issue: 4
Date: 1994
Page Range: 274--275
Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
Subjects:
-
By: Clark, William S. - Christy, Patrice
Type: Article
In: Bulletin of the African Bird Club
Volume: 13
Series:
Issue: 2
Date: 2006-08
Page Range: 207--210
Publication Info: Cambridge, African Bird Club, 1994-
Subjects:
-
By: Buij, Ralph, - Clark, William S. - Allan, David G
Type: Article
In: Bulletin of the African Bird Club
Volume: 23
Series:
Issue: 1
Date: 2016-03
Page Range: 46--63
Publication Info: Cambridge, African Bird Club, 1994-
Subjects:
-
By: Clark, William S. - Schmitt, N. John
Type: Article
In: The journal of the Bombay Natural History Society
Volume: 89
Series:
Issue:
Date: 1992
Page Range: 1--3
Publication Info: Bombay Bombay Natural History Society 1886-
Subjects:
-
By: Heredia, B - Clark, William S.
Type: Article
In: Raptor research
Volume: 18
Series:
Issue: 1
Date: 1984
Page Range: 30--31
Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]
Subjects:
-
By: Clark, William S. - Yosef, Reuven
Type: Article
In: The journal of raptor research
Volume: 31
Series:
Issue: 4
Date: 1997
Page Range: 317--320
Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
Subjects:
-
By: Clark, William S.
Type: Article
In: Raptor research
Volume: 19
Series:
Issue: 2-3
Date: 1985
Page Range: 85--93
Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]
Subjects:
-
By: Clark, William S.
Type: Article
In: The journal of raptor research
Volume: 26
Series:
Issue: 3
Date: 1992
Page Range: 196--197
Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
Subjects:
-
By: Clark, William S.
Type: Article
In: Bulletin of the British Ornithologists' Club
Volume: 119
Series:
Issue:
Date: 1999
Page Range: 56--59
Publication Info: London, British Ornithologists' Club, 1893-
Subjects:
-
By: Clark, William S.
Type: Article
In: Bulletin of the African Bird Club
Volume: 10
Series:
Issue: 2
Date: 2003-09
Page Range: 107--108
Publication Info: Cambridge, African Bird Club, 1994-
Subjects:
-
By: Clark, William S. - Paulson, Dennis R.
Type: Article
In: Bulletin of the British Ornithologists' Club
Volume: 122
Series:
Issue:
Date: 2002
Page Range: 156--157
Publication Info: London, British Ornithologists' Club, 1893-
Subjects:
-
By: Clark, William S. - Fisher, David - Finch, Brian W. - De Bruijn, Bernd - Shani, Itai
Type: Article
In: Bulletin of the African Bird Club
Volume: 12
Series:
Issue: 2
Date: 2005-08
Page Range: 150--152
Publication Info: Cambridge, African Bird Club, 1994-
Subjects:
-
By: Clark, William S. - Barlow, Clive R
Type: Article
In: Bulletin of the African Bird Club
Volume: 11
Series:
Issue: 1
Date: 2004-03
Page Range: 27--29
Publication Info: Cambridge, African Bird Club, 1994-
Subjects:
-
By: Clark, William S.
Type: Article
In: Bulletin of the British Ornithologists' Club
Volume: 125
Series:
Issue:
Date: 2005
Page Range: 149--153
Publication Info: London, British Ornithologists' Club, 1893-
Subjects:
-
By: Clark, William S. - Duffy, Katharine - Gorney, Edna - Mcgrady, M - Schultz, C
Type: Article
In: The journal of raptor research
Volume: 22
Series:
Issue: 2
Date: 1988
Page Range: 53--58
Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
Subjects:
-
By: Clark, William S.
Type: Article
In: Bulletin of the British Ornithologists' Club
Volume: 127
Series:
Issue:
Date: 2007
Page Range: 110--117
Publication Info: London, British Ornithologists' Club, 1893-
Subjects:
-
By: Clark, William S. - Banks, Richard C. (Richard Charles),
Type: Article
In: The Wilson bulletin
Volume: 104
Series:
Issue: 4
Date: 1992
Page Range: 571--579
Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
Subjects:
-
By: Clark, William S.
Type: Article
In: Bulletin of the British Ornithologists' Club
Volume: 112
Series:
Issue:
Date: 1992
Page Range: 150--157
Publication Info: London, British Ornithologists' Club, 1893-
Subjects:
-
By: Gorney, Edna - Clark, William S. - Yom-Tov, Y.
Type: Article
In: The Wilson bulletin
Volume: 111
Series:
Issue: 2
Date: 1999
Page Range: 181--187
Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
Subjects:
-
By: Clark, William S. - Wheeler, Brian K.,
Type: Article
In: The journal of raptor research
Volume: 23
Series:
Issue: 3
Date: 1989
Page Range: 116--117
Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
Subjects:
-
By: Clarke, Rohan H. (Rohan Hartley), - Prakash, V - Clark, William S. - Ramesh, N - Scott, D
Type: Article
In: Forktail
Volume: 14
Series:
Issue:
Date: 1998
Page Range: 70--71
Publication Info: Oxford,
Subjects: