Lead is a naturally occurring element in our environment that can be toxic at low levels of exposure. Increased levels of lead in the environment affect both humans and wildlife, especially raptor species. Lead shot is used by many hunters, and its use is regulated in the state of Indiana. Hunters are required to use non-lead (non-toxic) shot when hunting waterfowl anywhere in the state and when hunting mourning dove on all Fish & Wildlife areas. Lead shot may be used when hunting other species, and it may also be used in fishing tackle.