Seabirds abound on neighbouring Inaccessible and Nightingale, some 25 miles SW of Tristan. Nightingale, hardly a mile accross, harbours millions of greater shearwaters, side by side with thousands of rockhopper penguins, yellow-nosed albatrosses, sooty albatrosses, over a dozen of other seabird species, and two endemic finches and a thrush. In addition, Inaccessible has the diminutive Inaccessible flightless rail, the smallest flightless bird in the world. In 1994 Inaccessible was declared a strict nature reserve. On Nightingale the islanders are still allowed to harvest eggs and chicks of the shearwaters.