I don't doubt they can climb, but with a 7-pound chicken? Anyway, what to do about it, sheesh. I guess my options are:
Keep the chickens in the coop that is enclosed on all 4 sides--but they like going into the adjacent fenced yard!
Cover the top of the yard--that would be pretty hard.
Run an electrified wire over the fence--that might be the only feasible thing. I need to investigate what's involved in that.
Foxes are so darn cute--wish they didn't have a yen for chicken meat!
Kathi
P.S. Does that seem to be a fox to you? I turned the camera around to hopefully get a better photo of it, but I'm away from home for a few days so I can't check it yet.