The Spanish imperial eagle and eastern imperial eagle face ongoing threats from illegal poisoning that causes agonizing deaths and has historically impeded population recovery across Europe.
Death from organophosphate and carbamate poisoning is profoundly painful. Carbofuran causes seizures, respiratory paralysis, and prolonged dying. Eagles that consume poisoned baits may spend hours in convulsions before dying. Secondary poisoning compounds the welfare harm — birds weakened by sublethal doses are more vulnerable to predation and starvation. The population-level effects of poisoning have historically been catastrophic for species with slow reproduction rates, as each poisoning death represents years of lost reproductive potential. The Spanish imperial eagle recovery demonstrates that removing poisoning pressure, combined with nest protection and prey restoration, can rescue even severely depleted raptor populations. Continued law enforcement and the shift toward non-toxic wildlife management are essential.