Wildlife rehabilitation takes in injured, orphaned, and sick wild animals, and understanding success rates across species and conditions helps prioritize resources and improve welfare outcomes.
Wildlife rehabilitation welfare involves multiple ethical tensions: the welfare of animals in care during rehabilitation (captivity stress, handling stress, medical procedures) must be weighed against the welfare benefit of release versus the welfare of euthanizing animals with poor prognosis. An animal with a 5% chance of successful release after months of stressful captive rehabilitation may experience net welfare harm from the attempt compared to humane euthanasia at intake. Rehabilitators wrestle daily with these decisions, often without the benefit of species-specific outcome data that would enable evidence-based prognosis. The post-release welfare question is particularly challenging - a released animal may survive the first days after release but fail to establish a territory, find sufficient food, or avoid predation. True success is survival to reproductive success, which is rarely measured. Investment in post-release monitoring for common rehabilitation species would improve both welfare decision-making and outcome reporting.