Die Wildnis stirbt!
1936
Deutschlands Wilde Vögel 2
2014
A Year in a Field
2023
A Walk in Nature
2012
The Fairest Island
2011
Die letzten Paradiese - Die schönsten Landschaften und Tierparadiese der Welt
2018
Ice Bridge - Mackinac Island’s Hidden Season
2008
Cacu: A Change for Life
2019
Colter's Hell
1973
Stelvio: Crossroads of Peace
2014
The River: A Year in the Life of the Tay
2019
The Ganges Gharial
1984
Madman's dictionary
2010
Das Alien Insekt
2001
Habitat
2020
The History of a Butterfly: A Romance of Insect Life
1910
Swamp Dialogues
2015
Wilder Than Wilderness
2018
Kangaroo Mob
2011
Inhabitants
2024