I have a 10 week old Aylesbury not too sure if its a drake or a hen? It makes no noise at all but has no drake feather yet either so if any one knows how I can tell that would be brilliant. I've just moved her/him into a new big pen. I also have two Cayuga's ( 1 drake 1 hen) and one runner (hen) all 4 weeks old. I'm hoping to move the little ones out this week Question is should I put them with the older one or wait till they're a bit bigger? They have all been introduced and apart from a bit of friendly pecking from the older one they seem to get along but this is out in the garden so not sure if it would be the same in a smaller space. What's the worst that could happen?