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.
2020
2023
2002
2010
2024
2022
2019
1986
1987
2004
1952
1993
1999
1998
1995
2011
2016
1974