I know someone started a thread a few days ago about keeping chickens and ducks together, but I don't remember if it included information on feeding them. I am interested in housing chickens and Mandrins (possibly) in the same aviary (22 x 16 feet). Has anyone done this, and do they try to each eachothers food? The layer feed would have calcium in it, and I know the Mandrins only need it during laying season. I just want to make sure this is possible to do without harming either of the flocks.