Hi all, we are in a low predator area and our hens have a large run available to them. It's a 3 foot high chicken wire fence held in place on rebar in the ground as we move it depending on season. Lately a few birds are getting out to get into the backyard. We are trying to keep them off the grass this year. Any hints on ways to deter them from making it over the fence? Was wondering if putting reflective streamers on the top would weird them out as it blows, or something similar? We rent so can't put in a permanent structure. Thoughts?