Let me put it like this: You can put an elevator in an outhouse, but that doesn't mean it belongs there. Yes, you may do anything you want, but that does not mean it's what's best. While someone posted that they know people with both parrots, and chickens, and there's never been a problem, there are a lot more details being left out as to why it's worked. There are those that have not had problems, until they did, especially where illness is concerned. When problems strike, they tend to hit fast, and hard. Parrots belong in an aviary, and chickens belong in a coop.