Someone on the chicken side posted this in regards to chickens flying over a fence: This sounds crazy, but it work for me, I had the same problem, so my granddad told me to hang paper plates or pie pans on the top of the fence about 4 ft apart ,well belive it or not,,it WORKED!!!! What do you think about this in regards to guineas? My neighbors dog is a guinea chaser so them getting out of the run fence isn't a good thing. But my husband doesn't want to cover the run. We have a ton of pine trees and the needles will get stuck in wire or net and he's just not willing to take that step yet. But they can't stay in the coop/run forever. I guess I could clip a wing. What do y'all think??