Hello I'm recently new to keeping chickens. Infact i've only had my 4 week old chicks for a week. When talking to them through the fence of the coop before I put them to bed (around 9pm) all 3 of them started to bob their heads and then jump up at me. It was hilarious to watch as they kept doing it until I physically placed them in their coop. Why are they doing this? Just need some reassurance I'm doing everything possible to make my hens life perfect!