 In 1993, a National Wildlife Refuge was established on Guam to preserve the remaining forest, and birds are being translocated from Rota.Biologically controlling the brown tree snake is also being discussed.Crows were transported from Rota to Guam in 2003 to assist conservation efforts though this may have had the unintended side effect of decreasing genetic variation within the species as tests have shown the Rota population is less diverse than the Guam.