| 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 | |
| Publication |
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London : 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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