This is a Barnacle Goose, which migrates from the breeding grounds of Nova Zembla to the Netherlands. I photographed it this morning with a 5d and 500 f/4L
Thank Axel. The techs are iso400, 1/1000 at f/5.6. Seems that I shoot too often at a slow shutterspeed. Maybe I could have gotten away with iso640 in this case to freeze the action a bit more.