A friend of mine gave me some hen that he raise commercially for eggs production. He couldn't remember the breed when i asked him but they are all white with big comb and lay large brown eggs. At first i thought it was white leg horn but heard they lay white eggs. their butt was pink but thats because they laid so much egg. I don't give them any calcium so some of the feathers are slowly growing back. Any ideas of what breed are these hens?