TY - GEN N1 - Bibliogr. p. 74 N1 - P. [65]-75 : il. ; 27 cm N1 - Abstract in Polish. Taxa in Latin N2 - 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. L1 - http://www.rcin.org.pl/Content/45202/PDF/WA058_61075_P257-T34_Acta-Ornith-Nr-1-7.pdf M3 - Text J2 - Acta Ornithologica, vol. 34, no. 1 J2 - Zwyczaje żerowiskowe kani czarnej, kani rudej, bielika i orlika krzykliwego w Wigierskim Parku Narodowym J2 - Diet of birds of prey in Wigry National Park PY - 1999 IS - 1 EP - 75 KW - Milvus KW - Sea Eagle KW - White-tailed Sea Eagle KW - White-tailed Eagle KW - Lesser Spotted Eagle KW - Red Kite KW - Black Kite KW - breeding birds KW - birds of prey KW - nutrition KW - Poland KW - Wigry National Park KW - diet composition KW - food niche KW - birds KW - Aquila pomarina KW - Haliaeetus albicilla KW - Milvus migrans KW - Milvus milvus KW - Accipitridae KW - Aves A1 - Zawadzka, Dorota A2 - Polska Akademia Nauk. Muzeum i Instytut Zoologii PB - Muzeum i Instytut Zoologii PAN VL - 34 CY - Warszawa SP - 65 T1 - 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) UR - http://www.rcin.org.pl/dlibra/publication/edition/45202 ER -