White-tailed and roe deer increasingly inhabit urban and suburban areas, facing unique welfare challenges from traffic, habitat fragmentation, and human conflict.
Urban deer experience a complex mix of welfare benefits (reduced predation, food access) and harms (road mortality, disease transmission, stress from human proximity). Fertility control programs using PZP immunocontraception are increasingly used in dense suburban populations as a non-lethal alternative to culling. Wildlife corridors and reduced nighttime vehicle speeds in deer crossing zones can significantly reduce road mortality.