In 1966, Heinz Sielmann sets off on his longest expedition. He spent 19 months traveling through the wilderness of North America. From the alligator swamps of the Everglades to the breeding grounds of arctic waterfowl.
1994
1995
1984
1992
1993
2022
1973
2024
2005
2006
2025
1958
2002
2016
1953
1983
1999