@misc{Mitrus_Cezary_Age_1996,
 author={Mitrus, Cezary and Walankiewicz, Wiesław and Czeszczewik, Dorota and Jabłoński, Piotr M.},
 volume={31},
 editor={Polska Akademia Nauk. Muzeum i Instytut Zoologii},
 number={2},
 copyright={Rights Reserved - Restricted Access},
 address={Warszawa},
 journal={Acta Ornithologica},
 howpublished={online},
 year={1996},
 publisher={Muzeum i Instytut Zoologii PAN},
 language={eng},
 language={pol},
 type={Text},
 title={Age and arrival date of collared flycatcher Ficedula albicollis males do not influence quality of natural cavities used},
 keywords={Collared Flycatcher, breeding biology, Poland, Białowieski National Park, Białowieża National Park, cavity-nesting birds, nest-cavity, nest-competition, Old World flycatcher, birds, Ficedula albicollis, Muscicapidae, Aves},
}