I can definitely recommend ducks, they are very social and funny. I have the impression that quails are not so people-oriented. Of course it all depends on why you want them. We just have them for fun. They do need a lot more space and in any case a large container with water.I'm now considering ducks instead of quail. I can imagine they are a lot more work than quail but the egg size makes a difference. Plus it seems like ducks are friendlier than quail?