@misc{Walankiewicz_Wiesław_Is_1997,
 author={Walankiewicz, Wiesław and Mitrus, Cezary and Czeszczewik, Dorota and Jabłoński, Piotr M.},
 volume={32},
 editor={Polska Akademia Nauk. Muzeum i Instytut Zoologii.},
 number={2},
 copyright={Rights Reserved - Restricted Access},
 address={Warszawa},
 journal={Acta Ornithologica},
 howpublished={online},
 year={1997},
 publisher={Muzeum i Instytut Zoologii PAN},
 language={eng},
 language={pol},
 type={Text},
 title={Is the pied flycatcher Ficedula hypoleuca overcompeted by the collared flycatcher Ficedula albicollis in the natural forest of Białowieża?},
 keywords={Pied Flycatcher, Collared Flycatcher, Poland, Białowieża National Park, Białowieski National Park, competition, nesting competition, tree cavities, hornbeam forest, density, Old World flycatcher, birds, Ficedula albicollis, Ficedula hypoleuca, Muscicapidae, Aves},
}