Bird grit is an essential aid to your bird's digestion. As it has no teeth, your bird cracks the seed with its beak to remove the husk and then swallows the kernel whole. The grit is held in your bird's crop where it grinds down the seed into a form that can be easily digested. Your bird only holds a small quantity of grit in its crop at any one time. You can ensure that your bird always has enough grit by making it available in a separate bowl to the seed or through regular feeding of Avia Healthy treats.