I just got my ducks yesterday and this is concern of mine so I am trying to get as much info as I can. I have a empty 300 gallon stock tank in my cellar that could be used as a backup if it was really bad out but I need to put together a set up that they will be comfortable and safe in. I live in Southeastern MA and one question I had is should the coop be raised and how much spacing on the floor should there be for cleaning vs drafts and cold in the winter. As of today I have four Welsh Harlequins.