@misc{Kuźniak_Stanisław_(1933–_)_Breeding_1991,
 author={Kuźniak, Stanisław (1933– )},
 volume={26},
 editor={Polska Akademia Nauk. Instytut Zoologii},
 number={2},
 copyright={Rights Reserved - Free Access},
 address={Warszawa},
 journal={Acta Ornithologica},
 howpublished={online},
 year={1991},
 publisher={Instytut Zoologii PAN},
 language={eng},
 language={pol},
 type={Text},
 title={Breeding ecology of the Red-Backed Shrike Lanius collurio in the Wielkopolska region (Western Poland)},
 URL={http://www.rcin.org.pl/Content/42406/PDF/WA058_59192_P257-T26_Acta-Ornith-Nr-2-1.pdf},
 keywords={Red-backed Shrike, breeding biology, Poland, Leszno, shrikes, birds, Lanius collurio, Laniidae, Aves},
}