When I go into the coop I say hi to the chickens. I know, I'm losing it. If that bothers you, I also tell them what good chickies they are, etc. That said, when I do such a greeting, all the chickens twitch their heads quickly for a second, then stop. Say something again, they do the head twitch again. Why? Are they trying to hear better? Am I really that annoying to listen to?