2.68
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Otis tarda (Otididae) - Balzverhalten (1975)
Heinz Sielmann
剧情：
The courtship behavior of Great Bustards is studied. The male Great Bustard is considerably larger than the female. This impression is reinforced during courtship when the male dances in front of the female, showing the light undersides of its wings and inflating its throat pouch.
Otis tarda (Otididae) - Balzverhalten评分
★★★★★
★★★★★
