I am not sure the ones who find a nice home, like a golf course,
really migrate. I know the Canada Geese that lived at National Geo in
Gaithersburg stayed in that lake year round.
I think you're right, but the ones that visit us leave every spring. Maybe it's
a different group each time. They do look alike though!
It may have helped that the lake at National Geo was heated. It was
part of their energy system.