Fish and Wildlife Service FWS Behörde für Fischerei und Wildtiere Fish and Wildlife Service Servicio de Pesca y Vida Silvestre Servicio de Pesca y Vida Silvestre Service de la faune et de la flore שירות הדי והפראי मछली और वन्यजीव सेवा 魚類野生生物局 Serviço de Pesca e Vida Selvagem 渔业和野生动物管理局 FWS Fish and Wildlife Service The United States Fish and Wildlife Service (USFWS or FWS) is an agency of the federal government within the U.S. Department of the Interior dedicated to the management of fish, wildlife, and natural habitats.