What was the height of the fence he jumped over? I have a 48" fence now and the chickens with clipped wings can't jump over it. In my research I have seen that Cayuga don't fly. If this is not so I can clip wings if needed but I don't want to if I don't need to. We have no issues with predators here so they are not at risk with clipped wings.
Hens go broody when you don’t want them to… and won’t go broody when you do. 
