I had the same situation as above with a columbian wyandotte. Mine was still not feathered at 12 weeks, but as above, now at 17 weeks she's all feathered except she doesn't have much of a tail. She is still gangly, but no look of a roo. The roo I ordered was feathered just as fast as his hens, so the slow roo feathering did not work for me. The one that feathered late is still smaller than the rest. Hopefully your girl will catch up eventually.