It depends on three birds for pollination - the bellbird, stitchbird and the tui.
BBC: New Zealand scientists record 'biodiversity breakdown'
2.
They say the disappearance of two birds - the bellbird and stitchbird - from the upper North Island of the country has lead to a slow decline in common plants, including the forest shrub New Zealand gloxinia.
BBC: New Zealand scientists record 'biodiversity breakdown'