Arkadiusz Sikora, Marian Szymkiewicz, Andrzej Górski, Grzegorz Neubauer
Ornis Polonica 2015, 56: 190–211
https://doi.org/10.12657/ornis.2015.3.1
Abstract: In 2012, a total of 152 breeding bird species were found in the Special Protection Area (SPA) Napiwodzko-Ramucka Forest PLB280007 (1,166 km2, northern Poland). Either censuses or survey sampling methods (counts on 35 random plots of 4 km2) were applied to produce reliable population size estimates for selected 80 species. In total 34 species from the EU Birds Directive Appendix 1 and 12 listed in the Polish red data book of animals were recorded as breeders. This area is particularly important at a national level (>1% of Polish population) for the Osprey Pandion haliaetus (5 pairs, 15% of national population), Nightjar Caprimulgus europaeus (460–750 p, 7.6%), Whooper Swan Cygnus cygnus (7–9 p, 7.6%), Tengmalm’s Owl Aegolius funereus (40–60 p, 2.9%), Black Kite Milvus migrans (10–14 p, 2.0%), Little Crake Porzana parva (30–40 p, 2.0%), Red-breasted Flycatcher Ficedula parva (685–745 p, 1.7%), White-tailed Eagle Haliaeetus albicilla (17–22 p, 1.6%), Black Grouse Tetrao tetrix (4 males, 1.5%) and Lesser Spotted Eagle Clanga pomarina (32–35 p, 1.3%). The studied area also supports substantial local populations of the Goldeneye Bucephala clangula (100–120 p, 3.2%), Great Crested Grebe Podiceps cristatus (460–480 p, 2.4%) and Stock Dove Columba oenas (240–320 p, 1.1%). The nature reserve Las Warmiński (ca 18 km2, 2% of the forest SPA area) and adjacent areas represent the key breeding sites for several species and are therefore especially valuable. This area supports 99% of the Collared Flycatcher F. albicollis population in the SPA, and other important species are the Middle Spotted Woodpecker Dendrocopos medius (30%), Red-breasted Flycatcher (25%), White-tailed Eagle and Goldeneye (20% each), Stock Dove (12%) and Tengmalm’s Owl (7%). The biggest breeding aggregations of Goosander Mergus merganser and Great Crested Grebe (ca 30% of the SPA populations for both species) are located at lakes within the reserve and the adjacent Łańsk Lake.
Keywords: breeding birds, Napiwodzko-Ramucka Forest, Special Protection Area, valuable and uncommon species
