The attached picture was taken in January 2005 in Helsinki. There is a power station in Salmisaari emptying part of its cooling waters to a small bay and keeping there a small area unfrozen. I was approaching the place when mallards decided to leave and I managed to get this shot. Exposure is a bit long (1/250) and does not completely freeze movement but perhaps improves atmosphere in the picture.
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Canon 20D, 300/4 mm at 11