I let my 4 indian runner ducks outside today in new coop i had built it has a ditch at the end of the yard allowing them to swim. This was there first time in the water and after 10 mins they all came back out shivering. The biggest drake i had to take inside even he couldnt stand up after being in the water. I live in northeastern canada i know the nights are cold with frost now but i didnt think the water was that cold i had malard ducks in the past who had no issue with the water this time of the year. It was a average today prob about 12 to 15 celius by no means cold at the time. Should i keep them inside till spring or should i give them another go tommorow?