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Preferences of the Buzzard, Goshawk and Raven in choosing the trees for nesting were studied in northern part of the Augustów Forest (NE Poland) in 2014−2016 years. Study area is dominated by fresh and mixed fresh sites with Scots pine as a dominant species (86% of the forest area). Nests were searched in stands older than 60 years. We found 60 nests of Buzzard, 11 of Goshawk, and 31 of Raven. The...
W latach 2004-2008 badano liczebność i rozmieszczenie ptaków szponiastych w Puszczy Augustowskiej. Gniazdowało 12 gatunków. Najliczniejszym drapieżnikiem był myszołów Buteo buteo (175-183 rewiry). Wysoką liczebność miały także trzmielojad Pernis apivorus, krogulec Accipiter nisus oraz błotniak stawowy Circus aeruginosus. Jedynym gatunkiem wykazującym wyraźny wzrost liczebności był bielik Haliaeetus...
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