Jul 02, 2002 — The final report from a study of mercury levels in Adirondack loons is out. It finds that 17 percent of the birds scientists sampled last summer had high enough levels of mercury to affect their reproduction and behavior. The findings suggest that acid rain's effects on the Adirondack Park have spread throughout the food chain. But the long term effects are still to be determined. Brian Mann was with the researchers late last summer, and reported on what were then the preliminary findings.