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New research has found a respiratory disease is what caused high numbers of hoiho / yellow eyed penguin chicks to die over the last three years.
The collaborative study by Otago and Massey Universities, Dunedin Wildlife Hospital, and two government departments discovered about 25 per cent of the chicks on the mainland died during the 2021 hatching season.
One of the study's leads, Jemma Geoghegan, spoke to Charlotte Cook.