I have a four foot high chain link fence. I've never had any trouble with Bantam Silkies getting over it. One poster on this forum wrote that regular sized chickens would have even more difficulty clearing a fence because of their weight so I bought three Ameracuana hens and will have four Buff Orpington hens and one roo on the way. Lo and behold, I found one of the Ameracuana hens on top of the chainlink fence yesterday! I shooed it down and clipped all of the Ameracuanas' feathers. I used to have a parrot so it didn't freak me out. Today my neighbor knocked on my door and told me that they were still getting out! So I caught them and trimmed their primary wings a little closer. On the Internet, some sites state that clipping one wing is better because the bird loses it's balance but other people say that if the bird flaps hard enough, it'll still get over. Other people write that you have to clip both wings and those who disagree state that if the birds really want to get over a fence, all they have to do is flap harder! What's a person to do? Any advice?