I have a newly started mixed flock of 6 week olds and two week olds. There has been a great horned owl watching them for the past 3 nights now. I've never seen him on my wall till I moved my birds outside. Should I be concerned about it? He or she won't even fly away while I'm out there. I sprayed it with the hose and it took a while for it to fly away. Is there any tips I should know? Are they even capable of eating a large chick? My birds are about half the size of it. I thought they only ate rodents. Ive seen it eating a small inca dove though.