With reduced webbing on its toes, the cape barren goose (Cereopsis novaehollandiae) has adapted for life mainly on land. Its black, stubby bill is mostly hidden by a pale green cere—a fleshy pad at the base of the upper part of the bill. Aggressive and territorial, it performs several threat displays and may bite or strike with its knobbly wings. Mating occurs on land and is followed by a “triumph” ceremony by pairs after aggressive encounters with rival males.
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