If hundreds of dead eagles have been found and reported, then thousands have died in the wilderness and never been found. Much of my lion conservation work in East Africa in the last 25 years has been on poisoning and we know that only a small fraction are found, reported, and documented. Populations of lions and all other predators and scavengers, especially vultures, have plummeted due to poisoning but relatively few carcasses ever come to the attention of the people who are counting.