Please help or I am going to give up on my backyard birds if I can't keep them safer. I have a small secure 6'x4' run that we open up every morning and let the girls out into a 25' x100' grassy area. The large area has a 6 ft fence around it. There is with an evergreen tree and a bush for shelter as well as under the coop . Everything was fine until late fall when 2 of our hens were killed 3 days apart. We saw the redtailed hawk on the carcass of the second one. After that I read all the posts and we put bird netting over the entire 25' x 100' enclosure. There was a of 1-2 foot gap where we had to go around the pine tree but the gap had pine branches in it. We came home to two red tailed hawks IN the pen!! Only one hen survived .