I also have three ponds now. I filled in a fourth one because I needed a new spot for a rose bed. The same thing could happen to the other three ponds in time.
Those "fishing hawks" break my heart regularly when they come after the goldfish. Around here, they're blue herons. They sit on the roof, wait for a flash of orange, and swoop down with their killer beaks. The awful thing is that they don't eat the fish. They just stab them and let the poor dead fish float pathetically at the surface to break my heart.
And I'm with you on the cold, my fellow bag of bones. The temperature in the house right now is 68 degrees, but I'm wearing a dress, a jacket, and a bathrobe, and I even stole one of the cats' velour throws to wrap around my legs.