About two weeks ago, I went outside to check on the chickens when I noticed one of the two 9 week old pullets was missing. There was only a few feathers on the ground from my Rhode Island Red ( It wasn't a huge amount so I don't know if it was related to her disappearence or not). No other signs of her. Her little buddy was walking by itself which was very unusual as she always followed around the RIR. Our yard is fenced in so there was no way she could have gotten out. A couple of days later, we started seeing a hawk flying over. (We had never seen hawks by our house before this). After this, we fenced in the coops for our girls and rooster. The only problem is that in the center of the coop is a 20 ft willow tree. We have overhead netting topping their area around the tree and fencing around it. So far the chickens haven't been able to get out. However, the only open spot is the tree (its branches hide the opening on the top). I'm seeing hawks (maybe the same one) fly over every day now and I'm wondering if hawks would even risk getting caught in the tree to get my chickens if they can even see the chickens under the tree. It would be next to impossible to relocate the chicken area but I'm willing if it would prevent losing another chicken.