Tim--I wish!
The question that needs to be asked is, which scavenging animals are endangered due to lead shot or fragments? One reason we got the lead shot ban on waterfowl was that eagles were dying from eating crippled ducks and geese that went unrecovered. Eagles are still dying of lead poisoning today, mostly as a result of eating crippled and unrecovered deer. But the difference is, as a result of the ban on DDT and the CURRENT lead shot restrictions on waterfowl, eagles are no longer endangered as a species. Iowa went from something like 2 nesting pairs of eagles to hundreds of nesting pairs, with thousands of eagles in the state at certain times of the year. Other than the condor, I don't know of a single species that's endangered due to lead.
But it's a convenient back door way of attacking hunting and shooting.