Feed is generally available in feed stores and pet shops.
They will range around your place happily eating bugs, clearing weeds, fertilizing your vegetable plot and laying in nest boxes. They do tend to be a little more prone to disease than ducks even with the best care. These have been created by recent intensive selective breeding by Man. Most are almost entirely 'man-made' for the intensive production of eggs and in our opinion they are not as good for backyard and free ranging. We use and rear the Black Rock which is a first cross rather than a hybrid, and is bred from specially selected pure breed parent stock.