High fencing for deer management and infrastructure protection creates welfare risks including entanglement, migration barriers, and social disruption that require careful mitigation.
Deer fencing creates welfare risks that are frequently overlooked in infrastructure and land management planning. Entanglement causes death through strangulation, exhaustion, or predation of immobilised animals, and is common where poorly maintained or inappropriately designed fencing is used. Population fragmentation by long continuous fence lines prevents access to seasonal ranges, forcing animals to remain in areas with insufficient food during winter or to travel along fence lines seeking entry points, increasing road crossing frequency. Mitigation requires deer-sensitive fence design, regular inspection and maintenance, and provision of crossing structures at key connectivity points. The welfare cost of fencing is a legitimate planning consideration that is rarely given adequate weight.