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.
2025
2018
2023
2013
2021
2008
2014
2022
2010
2015
1965
2011
2019
2017
1946