I have purchased from a couple different breeders most I do not have their contact info, but the one breeder I did find on the Livestock Conservation website. I purchased some of mine as hatching eggs from Angel Stipetich. Here's the link to the page. I also know that Wayne Myers who is on the...
We just went through a -30 with -40+ wind chills and all of my ducks carried through. I have Runners, Rouens, Mallards and Hookbills. However, I think overall most of a duck's "hardiness" has to do with that duck's individual genetics. I have birds that could seemingly go through hell and back...