Additionally, Shiras moose, mule deer, bighorn sheep, pronghorn antelope, bison and coyotes enjoy habitat on the refuge. Nearly 175 species of birds have been observed. Large numbers of ravens, black-billed magpies, bald and golden eagles are scavengers. Ospreys frequently hunt on the refuge. Trumpeter swans nest successfully and winter populations include tundra swans.
Sage grouse occur year around.
Rocky Mountain Canada geese nest on wetlands. The refuge protects over 2,000 acres of critical wetlands in the Jackson Hole area. Two major streams - the Gros Ventre River and Flat Creek flow through the refuge and fishing is popular with fly fishermen for the native Snake River cutthroat trout. There are several cultural sites on the refuge and the Miller House is listed on the National Register. Pathfinder NWR consists of 16,807 acres and is an overlay project on part of the Bureau of Reclamation's Pathfinder Reservoir in south central Wyoming.