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Key wintering sites for Great Cormorant Phalacrocorax carbo and Pygmy Cormorants Microcarbo pygmeus in Croatia from 1992-2013.

Since 1992 wintering cormorants have been regularly reported in the frame of International mid-winter waterfowl counts (IWC). During the wintering period up to 1, 337 Pygmy and 19, 243 individual Great Cormorants were recorded per winter in Croatia. The winter census results were highly influenced by the research effort and numbers of participants, thus the given results are underestimates of the total national wintering populations. The key areas for wintering Great Cormorants are situated in the Pannonian plain along the large rivers (Danube, Drava, Sava) and their adjacent floodplains, as well as large reservoirs and fishponds. Relatively small numbers of Great Cormorants have been recorded along the Adriatic Sea and the few remaining wetlands. Contrary to that, the key areas for wintering Pygmy Cormorants are situated in the few remaining wetlands in the Mediterranean region – particularly Delta of Neretva River, Krka National Park and Vransko lake Nature Park. In the Pannonian plain the key wintering sites are situated on the Middle Drava at Dubrava and Cakovec Reservoirs, Lower Sava and Jelas fishponds near Slavonski Brod, as well as along the Danube River.

wintering ; key sites ; Great Cormorant ; Phalacrocorax carbo ; Pygmy Cormorant ; Microcarbo pygmeus ; Croatia

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