When he rediscovered the elusive night parrot in 2013, John Young became a hero in the bird world.
But his reputation is now in tatters after the veracity of his latest fieldwork was criticised by a panel of experts.
Did the charismatic naturalist fake evidence of the green and yellow feathered creature?
Ann Jones investigates a scandal that threatens to undermine conservation efforts.
This is a repeat of a program that aired in March 2019.
