so I'm pretty new to duck ownership and this is my first cold night going down to the low 20's my ducks (2 mini call ducks who we adore) typically sleep in their pool (they have a small house which has their food so the food does not get wet and hay for them to nest in but they prefer to sleep in the water which never bothered me till I realized how cold it is outside tonight (and as winter really settles in we will have nights down in the single digets) I chased them out of the water once and got them in the house but left the door open and by the time I was back in the house they were back in the water. I could lock them in the house if they need that but they jsut seem so so much happier on the water but I dont want frozen or frost bitten ducks soooooo what do I do??? ps their run is preditor safe so I'm not worried about that factor just the cold cold cold.