Although I can't speak to the scientific discussion here, I can share some real-world results from my first year of chickening. Our coop/run has fences on 3 sides that are about 8 feet and 1 side at 6 feet. We have 3 EE and 4 buffs. At about 12 weeks, one of the EE started to escape. I watched as she would jump/fly to the top of the gate, go explore, and then return. They have plenty of food, water, space, and a nice coop. But I agree that curiosity and adventure is a big motivation for chickens. We do let them out to explore and forage, about once per day. I tried to cover the run but the netting was cumbersome and this one EE had gotten stuck in the netting. With one EE as a bad influence, we eventually had all 3 EE and 1 buff that could escape. Ultimately, we decided to clip 1 wing on each chicken. We just clipped the primary flight feathers and have never had another bird escape. I have watched as the biggest perpetrator has jumped/tried to fly, but she just can't get high enough any more. I chose to clip 1 wing because common sense and understanding of flight/physics made the most sense to me.
We clipped the wings about 2 months ago and have had great success with it.
Mike
We clipped the wings about 2 months ago and have had great success with it.
Mike