The condor thing is a bit of a red herring. We worry about condors, whether or not they have problems with lead, because they're endangered. Same story with bald eagles, back when nontox was mandated for waterfowl: they were endangered back then. We worry about them a whole lot less now, even though we know that there are individual eagles dying from ingesting lead, because the overall population has made a miraculous recovery--in spite of the fact that we have not totally banned lead in ammunition.