This product is a must have first aid for broken blood feathers, clipped toe nails and any other emergency needs.The iron base in the hemostatic powder reacts with the localized blood to quickly stop bleeding by forming a protective scab in seconds. It does this independently of the body’s blood-clotting mechanism without entering the blood stream. In doing so, it also prevents bacteria from entering the wound or blood stream. Even if a bird licked at the toenail, it would not ingest enough ferric sub-sulfate to cause an adverse reaction or toxicity. The powder is very bitter tasting to birds.