In 1987, a British naturalist became the first professional warden of a remote Seychelles island; a year later 29 endangered warblers were moved there and established a new population

• Just one year later, the groundwork he established helped make possible an important conservation project: 29 endangered Seychelles warblers were moved to the island, creating a second population and helping save the species from extinction.
• Details of Bullock's pioneering work were recorded in his obituary in The Guardian.
• The scientific details of the warbler transfer we