My 4 or 5 week old chicks are getting really flighty. It is fun to watch them practice but they are actually just about able to fly over the 6 foot high chicken run...they would probably be fine in our yard but not so much in any of our neighbors yards and the walls separating us are much lower than 6 feet. Are they too young to have their wings clipped? As much as we'd prefer not to clip them yet we want to keep them safe. Thanks!!