Filmography
Eumetopias jubata (Otariidae) - Verhaltensweisen in der Kolonie1978 · Producer, Director
Otis tarda (Otididae) - Balzverhalten1975 · Director
Vanishing Wilderness1974 · Director
Lockende Wildnis1969 · Writer, Director, Producer, Director of Photography
Wonderen van het Afrikaanse Woud1968 · Director
Gasterosteus aculeatus (Gasterosteidae) - Balz und Ablaichen1965 · Producer, Director
Galapagos - Trauminsel im Pazifik1962 · Director, Writer, Producer
Lords of the Forest1958 · Director
Vrijheren van het Woud1958 · Director
Wiesensommer1956 · Director
Die Iltiskoppel1956 · Director
Woodpecker1955 · Cinematography, Writer, Director
Quick - das Eichhörnchen1952 · Director
Konzert am Tümpel1952 · Director, Director of Photography
Lied der Wildbahn1950 · Director