I raised Rhode Island Reds years ago but moved to Norman, OK. When our son and family moved out of state recently, I inherited 2 hens - an Australorp and a Silver Laced Wyandotte. They lay 2 eggs daily and are very happy in our lush, urban backyard with huge trees. But we’re soon moving to southwestern OK where there are no trees and multiple predators. I probably won’t be able to let them roam free. Any ideas for what to use for fast-growing shade? Thanks!