I know the feathers being clipped should be fully grown to prevent bleeding. They are still brooder bound and won't be out for another week or so. My yard is totally enclosed by a five foot fence (for the dogs) and I would guess that they won't be able to jump it for a while but they are all great at going airborne. (except the RIR's, they don't even try) And the other question is do I clip one wing or both? Some of what I've read says just clip one, it will unbalance them enough to keep them from getting that high. Other sources say clip both wings. Philosophically I'd rather limit them than unbalance them. But I've never dealt with chickens and I don't know if that is a consideration that really matters to a chicken or just my flawed human perception of their situation. Their main purpose is pets and entertainment that occasionally supply eggs, some we will consume, most we will give away. I'm a bit nervous about the clipping but I've watched half a dozen videos on YouTube and it looks a lot easier than doing my dogs' nails.