That's actually pretty awesome. I used to live in North Carolina and there was this manmade lake I would go to which was always warm due to the powerplant that was in the middle of it. That's why they dug out the lake, to cycle the water through the plant in pipes and then pour it back out into a reservoir steaming hot. But everyone loves that lake, it's pretty big and like 100 feet deep or something crazy. It was stocked with a bunch of native plants and fish and there were sizable flocks of feral ducks and geese that thrived there because the water was always warm by the plant and people that lived on the lake put out food for them.
They hated people and you couldn't get within 10 feet of one, but they were cool to look at. They were really cool colors too, given all the mixed breeds. Some of them would mate with the wild ducks and their babies would fly away in the winter if they could.