Pigeon lived with me for 3 years. It walked fine, but then before my very eyes, its foot gave away. Pigeon has probably pain in one foot because it cannot stand on it. Also, when it stands on good foot and tries to put the sick foot away under her feathers the foot does not hide all the way in feathers as it used to be. This is not a vitamin D deficiency because pigeon gets its vitamins in water.