My blue cochin hen has started acting like a rooster after the flock had a hawk scare a week ago. A hawk caught and ate a dove 5 feet from the chicken pen. My girls were in no danger since their pen has a chainlink roof, but the scare seems to have made my blue think she needs to protect the other girls. She keeps a watchful eye all the time now and even dominates the formerly dominant Rhode Island red. She's also started to make abbreviated crowing noises (sort of sounds like a rooster with a sore throat). Since I live right downtown, this isn't good. Leaving her in the coop until after 8 a.m. seemed to calm it down a bit, as did going out and standing with her for a while. Prior to this, she was the least dominant and most friendly of the group (there are 7 hens - 3 Rhode Islands and 3 partridge cochins plus the blue). They are all getting close to 6 months old and have not started laying yet. I'm pretty sure she's not a male, but I'm new to the whole chicken thing so I'm not positive. (I hope she's a hen, since she's my favorite!) I've attached a photo of her eating oat grass. Any help with what I should do to get her back to "normal" would be so helpful!