Bibliography of South Asian Ornithology · Search: Author is “christensen, s.” · 5 records · Printed 9 November 2026 · https://southasiaornith.in/search?author.is=christensen%2C+s.
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Christensen, S.; Bijlsma, R.; De Roder, F.; Henriksen, M. · 1984
Notes on birds recorded in Nepal, 1984
Manuscript
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Christensen, S.; Sorensen, U. G. · 1989
A review of the migration and wintering of Aquila pomarina and Aquila nipalensis orientalis
Raptors in the Modern World. Proceedings of the III World Conference on Birds of Prey and Owls, Eilat, Israel, 22-27 March, 1987: 139–150 · Book Chapter
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Hollom, P. A. D.; Porter, R. F.; Christensen, S.; Willis, I. · 1988
Birds of the Middle East and North Africa
Book
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Porter, R. F.; Willis, I.; Christensen, S.; Nielsen, B. P. · 1974
Flight Identification of European Raptors
Book
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Porter, R. F.; Christensen, S.; Schiermacker-Hansen, P. · 1996
Field Guide to the Birds of the Middle East
Book
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Pittie, Aasheesh. YYYY. Bibliography of South Asian Ornithology. URL: https://southasiaornith.in/. [Accessed on DD/MM/YYYY.]
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Pittie, Aasheesh. 2026. Bibliography of South Asian Ornithology. URL: https://southasiaornith.in/. [Accessed on 09/11/2026.]