we bought 4 chickens today to go on there own in there own house and run. there are 2 black orpington pol's. 1splash orpington pol. these 3 are large. the fourth we dont know what it is except we bought as a laying chicken it looks like a light coloured island red but it is quite a bit smaller than the other three but its kicking there buts. we only hads them a few hours but it keeps grabbing them and biting at them usually by the necks and they seem terrified of this one. any suggestions as to what i need to do please.