Tropical birds show signs of mercury contamination, due to artisanal gold mining operations: Study
A bird is caught in a mist nest set up in a forest to trap small animals while researching signs of mercury contamination, at the Los Amigos Biological Station, in Los Amigos, in the Madre de Dios region, Peru. File | Photo Credit: Reuters Tropical birds, from kingfishers to wrens to warblers, are showing signs…