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.
2017
2014
2015
2025
2006
2023
2008
2019
2016
2020
2000
2024
2007
2005
1970