@misc{Zawadzka_Dorota_Feeding_1999,
 author={Zawadzka, Dorota},
 editor={Polska Akademia Nauk. Muzeum i Instytut Zoologii},
 copyright={Rights Reserved - Free Access},
 address={Warszawa},
 howpublished={online},
 year={1999},
 language={eng},
 language={pol},
 abstract={The study was conducted in the years 1989-1993. The Black Kite fed primarily on birds and fish. Red Kite - on birds, mammals and carrion, the White-tailed Eagle - almost exclusively on birds and fish, and the Lesser Spotted Eagle on small mammals, birds and frogs. The White-tailed Eagle was the most specialised species. Its food niche breadth was smallest among the studied species and food taken in water habitats accounted for 95% of its diet. The Black Kite had the widest food spectrum in terms of the frequency of prey while the Red Kite - in terms of the biomass consumed. The mean body mass of prey specimens taken by the White-tailed Eagle was 578 g, by the Red Kite - 235 g, the Black Kite - 230 g, and the Lesser Spotted Eagle - 34 g. The food niches of both Kites and the White-tailed Eagle strongly overlapped. The smallest overlap was between the food niches of the two Eagles and between the Lesser Spotted Eagle and the Black Kite.},
 type={Text},
 title={Feeding habits of the black kite Milvus migrans, red kite Milvus milvus, white-tailed eagle Haliaeetus albicilla and lesser spotted eagle Aquila pomarina in Wigry National Park (NE Poland)},
 URL={http://www.rcin.org.pl/Content/45202/PDF/WA058_61075_P257-T34_Acta-Ornith-Nr-1-7.pdf},
 volume={34},
 number={1},
 journal={Acta Ornithologica},
 publisher={Muzeum i Instytut Zoologii PAN},
 keywords={Milvus, Sea Eagle, White-tailed Sea Eagle, White-tailed Eagle, Lesser Spotted Eagle, Red Kite, Black Kite, breeding birds, birds of prey, nutrition, Poland, Wigry National Park, diet composition, food niche, birds, Aquila pomarina, Haliaeetus albicilla, Milvus migrans, Milvus milvus, Accipitridae, Aves},
}