We are new to chickens, we have 3 which we thoroughly enjoy. We have one that is no trouble, lays most days, One that is a beautiful chicken, with the reddest comb, but only lays a shell less egg occaisionally, and the third one a speckled longhorn was doing well but went broody 3 weeks ago . She is now like a phsyco chick, moody, wont come out of th coop, we have tried loads of things, but she is still the same, how long can we expect this to go on. We have to keep the nesting boxes locked and guess when the laying one wants to go in. Help please.