I'm not sure if I should be concerned or not. It's 39 degrees in northern NJ right now and there is a frog, either a pickerel frog or green frog sitting on a rock in the pond. Last weekend there were 3 or 4 of them, all dark green, almost black taking in the heat of the sun. Isn't it a little late for them to not be "hibernating"???

Should I catch this guy and bring him in for the winter? Last winter, or the winter before, I had a green frog go "belly up" in the pond in the winter.