Polly, my Black Rock stopped laying in February this year. She goes up and sits and tries then comes down after a couple of hours. Normally no egg, no mess. I checked it in the chicken health book and this condition is described as a False Layer- it didn't give a remedy. Today I found a rubbery mass, quite hard and no shell. I think it was the materials that she must have been re-absorbing back into her system.
Has anyone else experienced this and is there anything I may be able to do for her? She has Cider Vinegar and regular worming with Vermex. She looks very down in the dumps, with slightly discolored tips to her comb.
Perhaps now she has passed the lumpy thing out she may get back to normal?