Unless one is an expert in or has substantial knowledge in given field and has sound analytical skills Google is not a friend.
That is simply not true. Just avoid secondary literature. If you read blog posts and editorial diatribes and cannot separate them from original studies, then you do, indeed, have a problem. Anyone that looks at the primary literature, on the other hand, finds it quite clear that lead shot and granulated pesticides are pretty well understood and the basic conclusions (they are toxic to wildlife, of course) is well known and accepted.