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Title
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Geographical variation in the occurence of song types in Nuthatch **Sitta europaea** populations
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Author
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Language
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English
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Source (journal)
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Ibis / British Ornothologists' Union. - London
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Publication
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London
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1997
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ISSN
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0019-1019
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Volume/pages
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139
(1997)
, p. 102-106
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