We have two backyard chickens, in an urban, but wooded area. They normally free range in our yard when we are home. I heard unusually loud chicken noises, and when I went outside a hawk flew off. It must have taken one of the chickens earlier, because I can only find one chicken now. She blew a lot of feathers, and is so super stressed. She is panting and spooked. I brought her inside to try and relax her. Any suggestions on how to help this girl out?