Icebreaker Eisvogel (English: Kingfisher) is an icebreaker employed by the Port of Vienna, Austria.Eisvogel clears ice in all three of Vienna's harbors. She is employed when the ice becomes a few centimetres in thickness. In 1985 she cleared ice that was 60 centimetres (24 in) thick. In ice-free months the vessel is employed for official tours. The German Navy built a 560-ton icebreaker, also named Eisvogel, which was sold off and is operated as a tugboat out of the port of Trieste.