Recovery of the endangered koloa maoli, or Hawaiian duck (Anas wyvilliana), drives this project through genetic management of hybridized populations on the main Hawaiian Islands. While koloa remain endemic to Kauai, all other island populations consist of feral mallards and koloa–mallard hybrids, making genetic restoration essential for species recovery. Rather than eradication, ongoing work applies model-guided supplementation and removal strategies to restore koloa genetic ancestry. Management approaches are informed by simRestore, a program that integrates genetic and ecological data to simulate ancestry outcomes and is currently being validated at James Campbell National Wildlife Refuge (NWR). Expanded efforts include multigenerational ancestry analyses using genomic tools, required disease monitoring for reticuloendotheliosis virus (REV) and highly pathogenic avian influenza (HPAI), and dissemination of findings to resource agencies, decision makers, and the public to support statewide recovery planning.