Owls face multiple pressures including rodenticide secondary poisoning, road mortality, and habitat loss, with individual welfare impacts in each case.
Secondary rodenticide poisoning causes organ failure over days in owls that consume poisoned prey. Animals dying from sublethal poisoning show neurological symptoms, impaired hunting ability, and eventual death from starvation or secondary causes. The welfare impact of rodenticide use extends far beyond the target rodent species to apex predators across the food chain.