Cuttlebone is a important dietary supplement for birds because it is a great source of necessary minerals and calcium which helps birds with bone formation and blood clotting. Cuttlebone is an inexpensive source of calcium carbonate and other trace minerals for your bird. It is a natural product and doesn't contain toxins or contaminants. Besides being an important dietary supplement, cuttlebone has a rough texture, making it an ideal tool to help support beak strength. Birds can use cuttlebones to help keep their beaks trimmed and sharp. Even finches and canaries will often improve their beak health if you provide them with cuttlebone.