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In the shadow of Australia's wettest mountain, is Cooper Valley. This valley alone, is the oldest rainforest on earth. In this ancient landscape, there is a creature that is more important than any other. The Cassowary. A giant, flightless, pre-historic bird. Amongst the Cassowary in Cooper Valley, one in particular rules the rainforest. Here, Bertha is the Queen. 'Dino Bird' follows Bertha's life through the seasons. Bertha has males that she allows on her territory and it's these males that raise her chicks. But this is no easy task, the forest is always changing and predators are around every corner. If Bertha's chicks don't survive, it could have drastic consequences for not only the Cassowary population, but even the forest itself...