What is the main health risk of lead poisoning in raptors?

Lead poisoning poses significant health risks to raptors, primarily affecting their nervous system and renal function. When raptors ingest lead through contaminated prey or spent lead ammunition, it leads to a series of toxicological responses.

One of the most critical issues is the impact of lead on the nervous system. Lead interferes with neurotransmitter release, which can result in neurological symptoms such as tremors, seizures, and altered behaviors. Furthermore, lead exposure can severely impair kidney function, leading to renal failure. This combination of nervous system dysfunction and renal impairment can drastically affect the raptor's ability to hunt, thrive, and survive in its environment.

The other options, while related to different toxicological effects or conditions, do not encompass the core issues related to lead poisoning in raptors as effectively as the one identified. This understanding is crucial for those involved in the care, rehabilitation, and conservation of these birds, emphasizing the importance of reducing lead exposure in their habitats.