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recent and chronic exposure of wild ducks to lead in human-modified wetlands in santa fe province, argentina.poisoning of waterfowl due to ingestion of lead pellets is a worldwide problem in areas that are subject to hunting. no studies have assessed exposure of waterbirds to this heavy metal in argentina, in spite of intense hunting activity, and the fact that only lead ammunition is commercially available. the objective of this study was to evaluate duck exposure to lead by examining gizzard and bone samples collected from 30 wild ducks, 16 rosy-billed pochard (netta peposaca), and 14 fulvous whistli ...200919617495
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