A group called the Center for Biological Diversity filed a lawsuit in 2009 asking the courts to prohibit the use of lead bullets on Bureau of Land Management property in Arizona. It contended that California condors were being poisoned by scavenging game killed by hunters using lead ammunition.
A federal judge has thrown the lawsuit out, however.
Threats to lead based ammunition is one of the biggest problems we’re facing today. Had this suit been allowed to proceed, it would have been really bad news.