2 Gallon Pail of Granular Bird Charcoal for Large birds, Chickens, Turkey & more, Grit, feed supplement, Scratch, Digestion, Feathers, Health, Odors Bird Charcoal - Granular charcoal is an excellent feed supplement that aids in digestion as well as absorbing certain microbes and their toxins in the stomach/gizzard. It can be mixed with the feed, sprinkled on the bottom of bird cages, or spread in outdoor areas as a feed scratch TESTIMONY: Gary raises racing pigeons, about 150 of them. That bird charcoal (LARGE) really works. I mix a ratio of 1 scoop of charcoal to 5 scoops of regular grit and just have it there for them every day. Ive noticed that their general health is better  better droppings and better feather quality. Ill be telling all my pigeon friends. Gary, Texas Ideal for chickens, pigeons, parrots, turkeys, and other domestic foul.