Deer populations in many regions have grown beyond carrying capacity, causing ecological damage and welfare problems for deer and other animals. Humane management approaches are available.
Wild deer welfare involves navigating genuine tensions between individual deer welfare and population-level welfare, and between deer welfare and ecological community welfare. Overabundant deer populations experience welfare costs from food competition, habitat degradation, disease spread (Chronic Wasting Disease), and road mortality. The ecological costs of overabundant deer populations include reduced forest regeneration, loss of wildflower diversity, and impacts on other wildlife. Lethal management through hunting, when conducted with skill and appropriate equipment, causes acute death that is welfare-preferable to the alternatives of starvation, disease, or road trauma. Non-lethal fertility control enables population management in contexts where hunting is not feasible — parks, suburban areas — though it requires repeated treatment and ongoing management. The welfare-positive approach to deer management is population-level thinking that considers the welfare of individual animals within the context of sustainable population sizes.