OK, I get it now. We call 'em Canada geese around here. Flew right over my head.
The Loon is a bit smaller than the Canada Goose.
I has a distinctly different set of cries than the Canada Goose, one of which is somewhat haunting. Another of its cries sounds a bit like a maniacal laugh, hence the name.
The Loon is a diver. I would see them them disappear when I was coming in to land on a lake and the aircraft frightened them.
The two dollar coin is called a Toonie. This even though the obverse has a picture of a polar bear standing on an ice floe barely big enough to stand on.