This is a seafaring, diving bird. We think it was blown off course, having to land on - well, land. This bird is so adapted to swimming and diving, that it can no longer properly walk. Its legs are so far to the rear, it tips forward on dry earth. So, if it finds itself on land, it is grounded because it cannot take off. We gave this bird a full examination and observed it over a couple of days while it feasted on seafood. A volunteer took the bird back to a place scoters are commonly sighted.