@misc{Gramsz_Bożena_Pokarm_1991,
 author={Gramsz, Bożena},
 volume={26},
 editor={Polska Akademia Nauk. Instytut Zoologii},
 number={1},
 copyright={Rights Reserved - Free Access},
 address={Warszawa},
 journal={Acta Ornithologica},
 howpublished={online},
 year={1991},
 publisher={Instytut Zoologii PAN},
 language={pol},
 language={eng},
 type={Text},
 title={Pokarm puszczyka Strix aluco w lesie grądowym koło Oławy},
 URL={http://www.rcin.org.pl/Content/42397/PDF/WA058_59185_P257-T26_Acta-Ornith-Nr-1-1.pdf},
 keywords={Tawny Owl, ecology, pellets, food, Poland, Oława, hornbeam forest, typical owls, birds, Strix aluco, Strigidae, Aves},
}