I've for 8 pullets, 4 RIR, 3 Easter eggers, and 1 barred rock. The barred rock is more than half the size of the others. They are 3 weeks old and from ideal. Is there a chance it's a bantam or a runt?? When they got here you could tell it was smaller than the others but only a touch. It's getting around great and looks perfectly healthy. The other 3 barred rocks I ordered did die during shipment and post 1 day if that matters.