Trumpeter Swans, the biggest (by weight, equal in wingspan to eagles) fowl in North America, have made a huge comeback population-wise in northern Wisconsin, where I vacation.
*See if you can see the babies, maybe only a week old, in this video I took a few weeks ago.
*Listen to the swans' sounds. Sounds like a trumpet. Which is where they get their name.
The other two kinds of swans in North America are tundra swans, which usually just pass through on their way to and from the tundra of the Arctic Circle; and mute swans, which are imported from Europe and destroy the vegetation here.
PS: The water is blue. It looks green because of the reflection from the woods.