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Article
Paulina Pawlak, Auteur ; Zbigniew Kwiecinski, Auteur ; Jan Husek, AuteurMobbing is an anti-predator strategy initiated by one or more members of prey species aiming at driving away a predator that is not undertaking an attack. Because of a continuous dispute as to whether mobbing of a top predator may indicate speci[...]
Article
Zuzanna M. Rosin, Auteur ; Zbigniew Kwiecinski, AuteurFood composition of the White Stork Ciconia ciconia has been widely studied by pellet analysis throughout Europe, but the effect of digestibility on pellet contents has remained unclear. We studied the effect of digestion on the composition of p[...]
Article
Lukasz Jankowiak, Auteur ; Marcin Antczak, Auteur ; Zbigniew Kwiecinski, Auteur ; Pawel Szymanski, Auteur ; Marcin Tobolka, Auteur ; Piotr Tryjanowski, AuteurThe raptor community wintering in an extensively managed farmland was studied in Western Poland during seven winters (2006-2013). Data on raptor presence and numbers was obtained using the point count method. In the present paper we focus on the[...]
Article
Marian Cieslak, Auteur ; Zbigniew Kwiecinski, AuteurDans Ardea (97(4) 2009)During 2003-07, the moult of four captive Northern Hawk Owls Surnia utula was studied in Poznan Zoological Garden (Poland). The aviary was under daily observation and all breeding events were recorded. It was recognized that captive conditions d[...]
