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By: Alström, Per - Colston, Peter - Olsson, Urban.
Type: Article
In: Bulletin of the British Ornithologists' Club
Volume: 110
Series:
Issue:
Date: 1990
Page Range: 43--47
Publication Info: London, British Ornithologists' Club, 1893-
Subjects:
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By: Handschuh, Markus - Zalinge, Robert N. van - Olsson, Urban. - Samphos, Phok - Chamnan, Hong - Evans, Tom D.
Type: Article
In: Bulletin of the British Ornithologists' Club
Volume: 131
Series:
Issue: 2
Date: 2011
Page Range: 118--122
Publication Info: London, British Ornithologists' Club, 1893-
Subjects:
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By: Alström, Per - Olsson, Urban.
Type: Article
In: Bulletin of the British Ornithologists' Club
Volume: 108
Series:
Issue:
Date: 1988
Page Range: 12--12
Publication Info: London, British Ornithologists' Club, 1893-
Subjects:
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By: Timmins, R. J. - Ostrowski, Stephene - Mostafawi, Naqeebullah - Noori, Hafizullah - Rajabi, Ali Madad - Svensson, Lars - Olsson, Urban. - Poole, Colin M.
Type: Article
In: Forktail
Volume: 26
Series:
Issue:
Date: 2010
Page Range: 9--23
Publication Info: Oxford,
Subjects:
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By: Alström, Per - Olsson, Urban.
Type: Article
In: Bulletin of the British Ornithologists' Club
Volume: 112
Series:
Issue:
Date: 1992
Page Range: 111--125
Publication Info: London, British Ornithologists' Club, 1893-
Subjects:
-
By: Alström, Per - Olsson, Urban. - Colston, Peter
Type: Article
In: Bulletin of the British Ornithologists' Club
Volume: 115
Series:
Issue:
Date: 1995
Page Range: 53--57
Publication Info: London, British Ornithologists' Club, 1893-
Subjects:
-
By: Alström, Per - Olsson, Urban. - Colston, Peter
Type: Article
In: Bulletin of the British Ornithologists' Club
Volume: 117
Series:
Issue:
Date: 1997
Page Range: 177--193
Publication Info: London, British Ornithologists' Club, 1893-
Subjects:
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By: Alström, Per - Song, Gang - Zhang, Ruiying - Gao, Xuebin - Holt, Paul I - Olsson, Urban. - Lei, Fumin
Type: Article
In: Forktail
Volume: 29
Series:
Issue:
Date: 2013
Page Range: 94--99
Publication Info: Oxford,
Subjects:
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By: Leader, Paul J - Carey, Geoff J - Olsson, Urban. - Baral, Hem Sagar. - Alström, Per
Type: Article
In: Forktail
Volume: 26
Series:
Issue:
Date: 2010
Page Range: 121--126
Publication Info: Oxford,
Subjects:
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By: Alström, Per - Olsson, Urban.
Type: Article
In: Bulletin of the British Ornithologists' Club
Volume: 110
Series:
Issue:
Date: 1990
Page Range: 38--43
Publication Info: London, British Ornithologists' Club, 1893-
Subjects: