@misc{Goszczyński_Jacek_Comparative_1981-1982,
 author={Goszczyński, Jacek},
 editor={Polska Akademia Nauk. Instytut Ekologii},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Warszawa},
 howpublished={online},
 year={1981-1982},
 language={eng},
 abstract={Food composition of three species of owls (Strix aluco, Asio otus and Tyto alba) has been analysed in an agricultural area with mass occurrence of common vole. The effect of various densities of this rodent on the food composition of owls has been examined. Also the seasonal variability of the diet and the variability due to environment are discussed. Specialization of owls in capture of voles and its consequences are discussed.},
 type={Text},
 title={Comparative analysis of food of owls in agrocenoses},
 URL={http://www.rcin.org.pl/Content/78407/PDF/WA058_87112_P2840-T29_Eko-Pol-A-Nr-3.pdf},
 volume={29},
 number={3},
 journal={Ekologia Polska},
 publisher={Polish Scientific Publishers},
 keywords={cultivated fields, birds, owls, feeding habits},
}