So my friend lost her two mallards this year to a dog that got onto her land and killed them. She cried for weeks, wants more ducks and I would like to incubate some for her. She has a beautiful pond and a duck house. Any ideas what ducks would be a good choice for incubation? We live in a really cold part of the country (Canadian Border) so do I want mallards again for her? They need to be pretty hardy.