I agree with getaclue that bald spot/black spots look like pecking is going on. One of my Austrolorps, Dixie, was being picked on when she was "under the weather" for some reason-weird egg shells was one of the symptoms. Since that has improved (she still is at the bottom of the "pecking order," though usually not picked on), her feathers have grown back and her comb looks lovely again. She was starting to look like a buzzard, poor girl!
As to the feet color, both my BA girls have gray/black legs and dark colored foot bottoms.