USDA-APHIS WS (United States Department of Agriculture-Animal and Plant Health Inspection Service-Wildlife Services)
Federal agency that is involved in determining depredation causes to livestock in the recovery area, including damage caused by wolves.
USFWS (United Species Fish and Wildlife Service)
The federal agency that is charged with overseeing the recovery of endangered fish, plants and animals. USFWS is a department within the Department of Interior and often referred to as the Service.