I am thinking of rasing ducks for eggs. They will be free range and will have to deal with cold winters and chickens year round. I am thinking runners or campbells i would stay with one breed and raise ducklings for sale as well. They don't have to be good moms as i will have my silkies raise them. I was also wondering about guineas could they be raise with ducks and chickens or should i get geese. They will have to be watch dogs for my layers as i am sick of them getting eaten.