The eect of habitat structure on guild patterns and the foraging strategies of insectivorous birds in forests

Department of Zoology, Palacký University, tř. Svobody 26, CZ-77146 Olomouc, Czech Republic; e-mail: adamik@prfnw.upol.cz Slovak National Park Service, The Administration of the Mala Fatra National Park, Nam. sv. Floriana 1002, SK-01303 Varin, Slovakia Dept. of Biology, Faculty of Ecology and Environment, Technical University, Kolpasska 9B, SK-96901 Banska Stiavnica, Slovakia Center for Ecological Studies, Ustredie 14, SK-01362 Veľke Rovne, Slovakia; e-mail: mkornan@stonline.sk