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
2010
2014
2017
2022
2013
2011
2015
1966
2020
2023
1937
2024
2018
2012