The other morning I went out to check on my chickens, they usually get up around 5:30-6 and I get up at 7:30-8, and I get a huge surprise. It is a pretty large run(24ft x 18ft x 6 ft tall) with a covered top because my Sumatra hens can fly and we have a lot of hawks. One of my hens is standing on top of the run. These chickens are confined to the coop and run all day. I go out there to catch her and she flies down and follows me back into the run. I then start looking for how she got out. I thought maybe she had flown up and ripped another hole in the chicken wire but I couldn't find one. So I start looking on the side wires for a hole and I can't find one. Then I start looking around the bottom and I find my hole. This hen had dug her way under the wire. All the dirt from the hole was on the inside of the run so it wasn't something trying to get in. I have since put a rock in the hole so it don't happen again and I am going to put concrete edgers around the entire run next week. So has anyone else's chickens dug there way to freedom before?