Bob Walker (NM):
Bald Eagle (9886)
Bob Walker (NM):
North American River Otter (9925)
Bob Walker (NM):
Black-billed Magpie (0303)
Bob Walker (NM):
Bison resting in the snow (0415)
Bob Walker (NM):
American Dipper (0556)
Bob Walker (NM):
Lone Coyote (0660)
Bob Walker (NM):
American Bison (0703)
Bob Walker (NM):
Coyote Mousing (0725)
Bob Walker (NM):
Common Redpolls (0790)
Bob Walker (NM):
Coyotes (0889)
Bob Walker (NM):
Common Goldeneye (1050)
Bob Walker (NM):
Common Goldeneye Surfacing (1067)
Bob Walker (NM):
Icy Stream (1128)
Bob Walker (NM):
Elk testing horns (5241)
Bob Walker (NM):
Pronghorn (5334)
Bob Walker (NM):
Trumpeter Swan (1223)
Bob Walker (NM):
Gibbon Waterfalls (1377)
Bob Walker (NM):
American Bison (1391)
Bob Walker (NM):
Canada Goose (1537)
Bob Walker (NM):
Elk (1660)
Bob Walker (NM):
Coyote (1719)
Bob Walker (NM):
Common Raven with fish parts (1770)
Bob Walker (NM):
Firehole Falls (1834)
Bob Walker (NM):
Muskrat in the Madison River (1926)
Bob Walker (NM):
Yellowstone River (1956)
Bob Walker (NM):
American Bison (1989)
Bob Walker (NM):
Trumpeter Swans (2039)
Bob Walker (NM):
Bighorn Sheep (9986)
Bob Walker (NM):
Cascade Creek Snowfields (6175)
Bob Walker (NM):
Cascade Creek Footprints (6182)
