A Natural Conditioner and Dietary Supplement for Pigeons Cod Liver Oil is a natural dietary supplement rich in polyunsaturates and Vitamins A, D and E. Give one capsule per bird, per day to promote good skin and feathers, strong bones and maintain good condition. Capsules contain Cod Liver Oil B.P. 274mg Vitamin A, not less than 167 i.u., with Vitamin D