Ok, what's the secret? I clipped my guineas' wings (just one side) yet they are still pretty good at flying. They used to be able to on top of the barn without trouble. Now they have to bounce off of things to get that high. But they're still able to fly over a 5' fence. I've spent today constantly chasing them back to the field. They're going over the field fence into the back yard and then over another fence into the front yard. Last time they were almost on the road when I noticed that were in front again. What's the secret to getting them clipped and preventing them from going over the fence?