I expect bald eagles do die from lead ingestion of sinkers, jigs, etc. However, the raptor rehabilitators will tell you that scavenging unrecovered deer and ingesting bullet fragments from them is also an issue. I can't verify the source of the lead, but there are bald eagles that still sicken and die from lead poisoning. That being said, as noted above, the bald eagle population has increased remarkably, and eagles as a species certainly are not in trouble due to lead ingestion.