I have one rooster (rhode is. red) and three hens (light brahma, americana and a silky). I've had the Am., silky and red for about a year now and they are great. The Am. and silky lay everyday like clockwork. About four months ago I bought the Brahma as a pullet and she was accepted into the flock but still isn't laying. She is huge and runs around with the others but just wont lay eggs. Is it possible for a chicken to be broken?