The latest addition to Galápagos’s finch list lives on the tiny, uninhabited and remote island of Wolf (an extremely difficult place for a small bird to have got to – but not easy for a film crew either as it required a 12-hour boat journey from Santa Cruz, Galápagos’s principal island). Nobody knows when the first finch arrived on Wolf but the castaways (thought to be sharpbilled ground finchesblown in from other Galápagos Islands to the south) undoubtedly faced unfamiliar challenges on their new home – an area of less than 0.8 square kilometres and the remains of an extinct volcano.