. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. Heft 3/4 17/1966 Rückgang der Rauhfußhühnerbestände 231. Abb. 1. Verbreitung des Birkhuhns (Lyrurus tetrix) in der Bundesrepublik Deutschland Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Zoologisches Forschungsinstitut und Museum Alexander Koenig. Bonn : Das Forschungsinstitut

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Keywords: ., bookcentury1900, bookcoll, booksubjectbiology, booksubjectzoology