Deer entanglement in fences is a significant welfare problem across Britain, with inappropriate fence design causing injury, prolonged suffering, and death in multiple deer species.
Deer fence entanglement causes welfare harm that ranges from acute panic and injury during the initial entanglement event to prolonged suffering during what can be extended periods of being trapped. Deer unable to free themselves die from exhaustion, dehydration, hypothermia, or predation while restrained. The welfare case for appropriate fence design is therefore direct and compelling: fences that are either appropriately high to prevent jumping attempts, or incorporate deer leaps that provide safe crossing alternatives, prevent this class of welfare harm entirely. Landowners and contractors who install deer fencing should use deer-safe specifications from the outset - retrofitting problematic fences after entanglement incidents is more expensive and welfare-costly than correct installation.