 From there, he re-established contacts with the Yaghan of Tierra del Fuego.In January 1869 he served as a lone missionary at Ushuaia in Tierra del Fuego.Whilst serving at Ushuaia as "God's Lonely Sentinel", as Stirling called himself, he was summoned to London to be consecrated on 21 December 1869 in Westminster Abbey as "Bishop of the Falkland Islands."