I recently started having a Hawk attack my 12 girls. Luckily I was close enough to save them. Since then I have done some recearch on Hawks and learned that if they don't have a clear flight path they won't attack for fear of hurting their wings. So I don't have the money to enclose their enclosed for free ranging. So I came up with an alternative solution. I created a spiders web of white string over the enclosure to unclear it's flight path. I also hung some old CD's I had to reflect and scare them away. So far it seams to have worked. I hope this helps anyone.