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.
2021
2013
2023
2024
2019
2017
2014
2022
1998
1958
1993
2012
1995
2025