Herman Giethoorn:
Tundra Swans, Cygnus columbianus (22)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (26)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (28)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (29)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (34)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (36)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (42)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (48)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (51)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (52)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (54)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (63)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (64)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (73)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (76)
Herman Giethoorn:
Tundra swans, Cygnus columbianus (111)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (118)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (121)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (122)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (128)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (132)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (142)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (152)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (156)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (26)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (27)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (70)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (23)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (20)
Herman Giethoorn:
Tundra Swans, Cygnus columbianus (14)
