Hi there fellow duck owners

My name is Michelle and I live in Ontario, Canada. My family and I are new to the feathered pet world as of this year and though we are LOVING it, I am having some anxiety about surviving the winter! We have 19 chickens, and 2 ducks; 1 pekin, Napoleon (though we are not 100% sure he is in fact a he), and 1 Rouen, Josephine (she is a girl!). I am wondering if anyone can give me a coles notes version of what they do to survive the winter in regards to ducks and their water! We have a lovely pool for them right now that they spend their days in, but once the snow flies, this won't be possible (unless we move them inside, which by the looks of it some of you pull off quite nicely!). To be truthful, if it would be less work we would consider bringing them inside, they get along quite well with our dog. Any insight would be great!
Thanks!