Muscovies are originally from South America (I think but don't quote me on the exact location but their native climate is tropical). So in the winter they'll need good protection from the cold. We have a small female who lost a few toes this year due to frost bite. Miss Waddelsworth gets along fine but she does walk a bit funny. Depending on what natural predators you have in your area, you'll need something to protect them from those. Where we're at in the US, we don't have much of a problem with day time predators but at night we have a real fox problem and the opossums are making their rounds looking for eggs and unprotected ducklings. So everyone goes into a coop at night that I lock up to provide that protection. Our chickens are in an enclosed run with their coop because of the hawks in the area are not shy about dining on chicken, morning, noon or night... but they leave the ducks and geese alone; probably a size thing. Chicken wire is cheap and serves its purpose, but it meant to keep poultry in a restricted place; not to keep animals out. A dog or raccoon can easily chew their way through chicken wire. So if that's a potential problem use a more resistant wire fence. Hope this helps you begin to plan for your new feathered friends. They are an absolute joy to have. Greatest de-stresser ever invented!!!