My first hen, Darcy, is a Cornish cross meat bird, although she will not be killed for meat and I intend of raising her as a pet to live the longest, healthiest life that she can live. However, she seems to be gaining weight very quickly. I've been told that meat birds can gain so much weight that it either causes heart attacks or causes their legs to break from their own weight. Is this true? I've tried cutting back on her food, but not only does this seem to not be working, it's keeping too much food away from the rest of the flock, all baby bantams. Are the rumors true about meat birds? What can I do to help Darcy lose weight? I cannot separate her from the others while they eat, so I need a different solution. If it helps, all of the chickens are about three months old.