I'm glad to see this thread move from name calling back to discussion.
A couple of points.
(1) Wind mills are irrelevant. If they are harming eagles, something should be done about it--including not siting wind farms in known areas of eagle migration or concentration. But that has nothing to do with impacts (or not) of lead on eagles and other birds.
(2) Clay sports could survive just fine with steel shot, which is not all that much more expensive than lead shot--and would likely be less expensive if demand increased. Some ranges now are restricted to steel shot. Yes, the ballistics would be different, and shooters and target setters would have to adjust.
(3) If all ranges cleaned up their lead shot, there would be no need for steel on clays ranges. The spot I shoot clays is mostly wooded, especially in the areas where spent shot would fall. Reclaiming the shot would require cutting all the trees--which definitely hasn't been done. Kudos to those ranges who clean up the lead, and it sounds like there is some financial incentive to do so.
(4) While it's certainly good that eagle populations are stable in many places, I think our responsibility goes beyond ensuring that we don't cause population declines of non-target animals. The information I've found on line--and not from groups like PETA or HSUS, but from radical groups like the
Iowa DNR and the
USGS--suggests that lead can be a problem.
(5) Based on published studies that they cite, the
Wildlife Society and the
American Fisheries Society both have passed official policy positions that don't call for banning lead, but do acknowledge the concerns about continued use of lead and call for reducing it's use. (Note that the Wildlife Society statement I linked was passed in 2009, and states that it expires in 2014. I looked for but could not find an updated statement.) I think the Wildlife Society statement sums things up well:
Advocate the replacement of lead-based ammunition and fishing tackle, while recognizing that complete replacement may not be possible in specific circumstances.
(6) As always, more research is needed. But this shouldn't stop us from considering reasonable measures where they are feasible.
For me, those reasonable measures include using steel shotgun shells when I can find an appropriate steel load for my hunting. I'm considering, but have not yet, converting to steel for clay sports, too.