So it's official.... My dog is a chicken killer. I've managed to save his victims this far but it's NOT through lack of effort on his part. So here is my problem. This yard has two gates into it. Their entry point is only about 10 yds long. I need to keep them OUT of the dogs yard ... And they don't seem to really want to do that despite the half an acre of land in the OTHER direction. Help!! How can I keep them out!? Low tech options preferred but I'll try about anything. The thing is that the gates have to remain operational! One is a big livestock gate and the other is a small gate. The fence is about 4'6". Regular chain link.