text: U.S. Wildlife Refuges Facing Grave Threats A sweeping wildlife preserve in southwestern Arizona is among the nation's 10 most endangered refuges, due in large part to illegal drug and immigrant traffic and Border Patrol operations, a conservation group said Friday.
inputs: U.S. Wildlife Refuges Facing Grave Threats A sweeping wildlife preserve in southwestern Arizona is among the nation's 10 most endangered refuges, due in large part to illegal drug and immigrant traffic and Border Patrol operations, a conservation group said Friday.