I live with wetlands behind me-- we have a new swan family move in after 4 years of no swans. what bothered me is this couple flew off leaving the young adult swan--the other swan family's always flew off together-- why?? very worried about him. Is it because he can't fly?? Looks like he has some trouble flying--should I call a government agency?? Don't want him killed for no reason. I am very worried and looking forward to you advice-- thank you --shannon