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Auteur Peter Havelka |
Documents disponibles écrits par cet auteur (3)
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Article
Christian Stange, Auteur ; Peter Havelka, AuteurAfter a strong decline since the 1960s, only three relict populations of Hoopoes remained in Baden-Wuerttemberg, SW Germany. In two of these areas, Kaiserstuhl and Markgraeflerland, population trends and reproduction of Hoopoes were studied from[...]![]()
Article
Christian Stange, Auteur ; Peter Havelka, AuteurAfter a strong decline since the 1960s, only three relict populations of Hoopoes remained in Baden-Wuerttemberg, SW Germany. In two of these areas, Kaiserstuhl and Markgraeflerland, population trends and reproduction of Hoopoes were studied from[...]![]()
Article
Stefan Bosch, Auteur ; Peter Havelka, AuteurBy means of radio-telemetry we tracked the daily activities of two magpies of the same roosting community in winter time. In December and January which were characterized by constant freezing and by a closed snow cover both birds used a grove an[...]



