I haven't had chickens since I was little, but we bought 3 little Silkies today. They are currently chirping away in a plastic bin with a light over them. One of them seems to be opening his beak/mouth frequently. Like, he's stretching his neck and doing it. I don't know much about how they eat, is he regurgitating his food and then eating it? Not sure. Want to make sure nothing's wrong with them! Other than that, all are eating fine, eating out of my hand.