We have a relatively large flock of various chicken breeds Americana, BCM, BO, BR, RIR, Light Brahma, Polish and plenty of barnyard mix. It appears only a few have been subjected to lice some more than others and some have never had any. They all share the same coop and roost together. During the day they are all our free on the property only in during the evening. Is it possible specific Chicken breeds are more susceptible to lice infestation?