When lead fishing sinkers are lost through broken line or other means, birds can inadvertently eat them. Water birds like loons and swans often swallow lead when they scoop up pebbles from the bottom of a lake or river to help grind their food. Eating just one lead sinker can poison a loon. Eagles
Lead and Mercury. Toxic Heavy Metals. Brain toxins. Do these sound like far-away problems for scientists to ponder? Guess again. Both mercury and lead can often be found in our own kitchens, homes and even grocery stores. Exposure to these heavy metals can cause memory, reproductive and nervous system problems for adults and affect the brain development of babies and young children. By learning more about these toxins and taking certain precautions, you can reduce the effects from these indoor and outdoor hazards.