Just got on here to see ways to"deter hawks" because I NOW have had it brought home, heartbreakingly so, that small hawks can/do kill/eat large chickens on site. I have had chickens for many many years now and although I had seen many hawks in the past I was told "shouldn't be a problem" and obviously nobody told this Coopers hawk he was too small. Thought I had weasel issues but never had a sighting so after 2 chicken deaths(found in shed partially eaten) I finally saw the culprit in chic shed 2x and 2 deaths later I am finally trying to deter hawks. Would have been easier to deal with weasels probably! 4 partially eaten chickens in 2 weeks.And 2 were 7 lb hens. Other 2 were 6 year old pets(both appx. 4 lbs) so doesn't take but 1 rouge raptor to do lots of damage.A hawk will only take prey it can carry. So if your chickens are fully grown there shouldn't be a problem.