IMPORTANT WINTERING SITES FOR WATERBIRDS IN CROATIA FROM 2017 TO 2019

Abstract

Zimskim prebrojavanjem ptica močvarica 2017. godine je prebrojano 155.772 jedinki predstavnica 88 vrsta ptica. Slijedeće zime 2018. godine je prebrojano 134.543 jedinke predstavnica 84 vrsta ptica, dok je u siječnju 2019. godine prebrojano 187.339 predstavnica 82 vrste ptica. Najbrojnije ptice močvarice u 2017. godini su crna liska Fulica atra (37.772 jedinki), divlja patka Anas platyrhynchos (29.987 jedinki), lisasta guska Anser albifrons (17.450 jedinki), galeb klaukavac Larus michahellis (11.563 jedinki) i krunasta patka Aythya fuligula (6554 jedinki), dok su u 2018. godini najbrojnije bile crna liska (29.140 jedinki), divlja patka (20.508 jedinki), galeb klaukavac (18.889 jedinki), riječni galeb Croicocephalus ridibundus (8517 jedinki) i siva guska Anser anser (7568 jedinki). Pet najbrojnijih močvarica 2019. godine su bile divlja patka (51.152 jedinki), lisasta guska (20.297 jedinki), liska (17.390 jedinki), riječni galeb (11.473 jedinki) i galeb klaukavac (10.772 jedinki). Određene su vrste koje su u Hrvatskoj zimovale s više od 1% preletne populacije, a temeljem tog kriterija su određena područja od međunarodnog značaja za zimovanje močvarica u Hrvatskoj. U periodu 2017-2018. su to bila sljedeća područja: akumulacijsko jezero Donja Dubrava, Kneževo, poljima između Podunavlja i Kozjaka (Kopački rit), ribnjaci Našička Breznica. Ribnjaci Grudnjak, Lonjsko polje, Jelas polje. Vransko jezero također pripada područjima od međunarodnog značaja, ali na temelju drugog kriterija.Under the International Waterbird Census in Croatia 155.772 individuals representing 88 bird species were counted during 2017. The following winter, in 2018, 134.543 representatives of 84 bird species were counted, while in January 2019, 187.339 representatives of 82 bird species were counted. The most numerous waterbirds in 2017 were the black coot Fulica atra (37.772 individuals), the wild duck Anas platyrhynchos (29.987 individuals), the spotted goose Anser albifrons (17.450 individuals) yellow-legged gull Larus michahellis (11.563 individuals) and the crowned duck Aythya fuligula (6554 individuals), while in 2018 the most numerous were the black coot (29.140 individuals), the wild duck (20 508 individuals), yellow-legged gull (18.889 individuals), black-headed gull Croicocephalus ridibundus (8 517 individuals), and the gray goose Anser anser (7568 individuals). The five most numerous waterbirds in 2019 were the wild duck (51.152 individuals), the spotted goose (20.297 individuals), black coot (17.390 individuals), black-headed gull (11.473 individuals), and yellow-legged gull (10.772 individuals). The species that wintered in Croatia with more than 1% of the migratory population were determined, and based on this criterion, areas of international importance for wintering waterbirds in Croatia were determined. In the period between 2017 and 2018, these were the following areas: reservoir Donja Dubrava, Kneževo, fields between Podunavlje and Kozjak (Kopački Rit), Nasicka Breznica fishponds, Grudnjak fishponds, Lonjsko polje Nature Park, Jelas field. Vrana lake also belongs to areas of international importance, but on the basis of another criterion