Poster of Otis tarda (Otididae) - Balzverhalten

Otis tarda (Otididae) - Balzverhalten

Plot: The courtship behavior of Great Bustards is studied. The male Great Bustard is considerably larger than the female
Release Date: Wednesday, January 1 1975
49 years ago
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Cast

Crew

Portrait of Heinz SielmannHeinz Sielmann
Heinz Sielmann was
57 in Otis tarda (Otididae) - Balzverhalten
as 'Director'
Sat, Jun 02 1917 –
Fri, Oct 06 2006