About 6 weeks ago, I rescued some millie fluer d'uccles (1 roo, 4 hens). They had been kept in a 3x3 wire rabbit cage and were being fed old roy dog food. All were missing some feathers, but one hen was missing 95% of her neck feathers and another was missing all of her tail feathers. I am not sure if the feather loss was from the close confinement, feather plucking or rough handling. In the time I have had them, they are acting less stressed, they are eating better (crumbles and veggies) and they are all feathering out nicely, except the hen missing her tail. Her body feathers are looking so much nicer, but so far there is no sign of her tail feathers growing back. Will it ever grow back?