Immunocontraception is transforming humane wildlife population management, providing effective fertility control without the welfare costs of lethal culling.
Wildlife contraception represents a genuinely humane alternative to lethal population management for accessible wild populations. A deer vaccinated with GonaCon by remote dart experiences minimal welfare impact — a brief stress of dart impact and minor injection site reaction — compared with the acute trauma and death of lethal culling. Population-level effects are equivalent over time as recruitment is controlled without removal. The welfare advantage is clear; the practical advantages of reduced labour, absence of disposal requirements, and public acceptance are additional. The primary limitation is cost and logistics for large, remote or inaccessible populations.