Zur feldornithologischen Unterscheidung der Weibchen von Reiherente (Aythya fuligula) und Bergente (Aythya marila)
H. Bruns
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Format: | Text |
Language: | German |
Published: |
1985
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Online Access: | http://nbn-resolving.org/urn:nbn:de:hebis:30:4-179606 http://nbn-resolving.de/urn:nbn:de:hebis:30:4-179606 |
Summary: | H. Bruns |
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