Nearly half the eagles sampled had what researchers called “unexpectedly high frequencies of lead,” experts wrote in the study, published earlier this year in the journal Science.
The findings went beyond Cooper’s fears: Nearly half of bald and golden eagles in the United States, and in the D.C. region, have chronic lead poisoning.Eaglet removed from nest at arboretum in D.C. — and viewers freak out
Lead, a highly toxic metal, is considered extremely dangerous to animals and people. Eagles and other scavengers ingest it when they feed on the remains of animals that have been killed with lead ammunition. They can also be exposed through mining, power plant emissions, aviation fuel, industrial paints and improperly discarded lead acid batteries.“The skeleton of an animal is the long-term storage facility for lead,” Katzner said.
“The body thinks it’s an essential nutrient and tries to absorb it, but the toxin, even at the lowest levels, goes into their circulatory system,” he said.
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