Our 5 chickens have settled well into their chicken run since we got them in the autumn last year. To protect them from foxes, the fence around the run is 2 metres high. The hens' wings are clipped so theoretically, they shouldn't be able to get out of the run. Snow White, our coral nick, however, has discovered how to fly even with clipped wings. A number of times now I have found her wandering around the allotment though she always rushes over to the gate to greet me (or more likely see if I have any food for her). So she doesn't wander off though I discovered today that yesterday, one of the neighbouring allotment holders found her on the path outside the allotment. He picked her up and put her back in the chicken run.
That was not what she had initially escaped from. Yesterday morning, I had put her in the fruit cage which has a 2 metre high frame with netting though we had removed the roof as a precaution against snow damage. Somehow through the day she had managed to escape from that. She doesn't go far. Her main concern is to explore the immediate locality to forage for food.
The danger however is that she is vulnerable to foxes if not in the chicken run or fruit cage. So we are going to have to check her wings and clip them again.