Bald eagles and other raptors suffer chronic lead poisoning from consuming gut piles and carcasses containing lead ammunition fragments, causing neurological damage and death that is entirely preventable.
Bald eagle lead poisoning from ammunition represents a preventable welfare harm that is linked to a specific and tractable human behavior: the choice of ammunition type by hunters. Eagles that ingest lead fragments from gut piles and carcasses accumulate lead that progressively damages their nervous systems, causing impaired coordination, muscle weakness, and eventually death. Sublethal poisoning affects the eagle's ability to hunt, maintain territory, and raise young, meaning the welfare harm extends beyond individual mortality to reduced reproductive success. The complete availability of effective non-toxic ammunition alternatives means that the continuation of lead ammunition use is a choice, not a necessity. Voluntary transition by hunters to copper and other non-toxic alternatives, supported by regulatory requirements where voluntary uptake is insufficient, provides the solution.