SPRAWOZDANIE Z ZIMOWEGO MONITORINGU PTAKÓW NA OBIEKTACH WODNYCH NIZINY MAZOWIECKIEJ W STYCZNIU 2015 ROKU
Journal Title: KULON - Year 2015, Vol 20, Issue
Abstract
During 17-25 January 2015, we conducted a successive count of birds wintering in river valleys and other selected objects in the Mazovian Lowland. The purpose of this action was monitoring the distribution and numbers of birds wintering in the Mazovian Lowland, with emphasis on waterbirds. The study covered 16 rivers of different size classes. Observations were also conducted in other places of the concentration of waterbirds – in Warsaw, Radom, Skierniewice, and on dam reservoirs, such as Zegrzyński, Domaniów and Siczki. In total, 1117 km of river course and dam reservoirs were monitored. The winter season of 2014/2015 was mild, and mean temperatures of the region fluctuated between +1OC and +5OC. The mean water level of the Vistula and its confluents was within the zone of average values. There was no ice cover. We noted the wintering of 99 bird species, with a total of over 94 thousand individuals. The dominant species was the Mallard Anas platyrhynchos (81%). Fairly numerous were also the Goosander Mergus merganser 2.7%, Black-headed Gull Chroicocephalus ridibundus 2.7%, large not indentified gulls Larus spp. 2.5%, Golden Eye Bucephala clangula 2.4%, Mute Swan Cygnus olor 2%, Cormorant Phalacrocorax carbo 1.7% and Greylag Goose Anser anser 1.5%. Among land birds we recorded 65 taxa, with a total of 41 994 individuals. The most abundant species were represented by the Siskin Spinus spinus (25.2%) and Fieldfare Turdus pilaris (21,1%). The dominant species also included the Great Tit Parus major (6.5%), Hooded Crow Corvus cornix (5.3%) and Jackdaw Corvus monedula (5.3%). The mean density was 376.6 individuals/10 km.
Authors and Affiliations
Marcin Łukaszewicz, Patryk Rowiński
Keywords
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Uwagi o książce: Janiszewski T., Podlaszczuk P., Wojciechowski Z. (red.) 2014. Ptaki lęgowe OSO Pradolina Warszawsko-Berlińska PLB100001.
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