David Butler (20) (1953–2020)

[from Penguin Books Australia website]
David Butler is a highly respected New Zealand scientist, biodiversity consultant, and author, who has a strong background in species conservation and forest restoration. He has written several books, including The Black Robin: Saving the World's Most Endangered Bird, which he co-wrote with legendary conservationist Don Merton, and Quest for the Kakapo. In Paradise Saved, he and Tony Lindsay tell the gripping story of how communities of volunteers and scientists are turning back New Zealand's tide of extinction of native birdlife. Butler was instrumental in setting up the Brook Waimarama Sanctuary Trust and is its current Chair. His conservation work extends throughout New Zealand, to the Pacific Islands, particularly Samoa, and the Indian Ocean.