How peregrine falcon recovery from DDT collapse represents a welfare and conservation success, and their adaptation to urban life.
Peregrine falcon recovery demonstrates that focused environmental regulation can produce dramatic wildlife welfare and conservation outcomes. The DDT ban — motivated by both human health and wildlife concerns — allowed falcon populations to recover from near-extinction within decades. Urban peregrines have adapted remarkably to city environments, finding abundant pigeon prey and cliff-like nesting sites on tall buildings. They now face the next generation of chemical welfare threat through rodenticide secondary poisoning. The lesson of peregrine recovery — that specific, targeted regulation addressing the causal mechanism of decline produces results — applies to the anticoagulant rodenticide challenge facing peregrines today.