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Birds of Indian Subcontinent
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Ornis Scandinavica
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Literature
Authors
Year
Title
Balfour, E
,
Cadbury, CJ
1979
Polygyny, Spacing and Sex Ratio among Hen Harriers Circus cyaneus in Orkney, Scotland
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts,
Simon Rycroft
,
Ben Scott
,
Vince Smith