We've had a Pekin for several years & acquired an Indian Runner just this summer. I'm not familiar with the hardiness of Indian Runners. The 2 ducks stay on our pond & will not go voluntarily into a shelter. We have an aerator, so an area about 15' x 6' is free of ice right now. It is currently 16 degrees but 23mph winds make a wind chill of -2. In the past, we've waited until the Pekins no longer had an area to swim, captured them & put them in the shed with our chickens. I'm worried about them tonight but to wrangle them, we'd have to go out in the dark onto the ice of the pond to try to chase them out of the water. What are your thoughts?