Black Backed Gull....

We have had this fellow in for about a week. Someone had taken a pot shot at him- injured his wing. Hes on "bedrest" for couple weeks. He loves when we refill his large container of water....not sure whether he's swimming in 
his drinking water, or drinking his bathwater. He has been called all sorts of names- his bill is such a weapon......the name " little sh*t" has been heard to be said!!!!!!!!!