a decline has been found at almost all other African penguin colonies. Its causes are still largely unclear and likely to vary between colonies, but at Robben Island are probably related to a diminishing of the food supply (sardines and anchovies) through competition by fisheries. Easy to see in their natural habitat, the penguins have been a popular tourist attraction. Around 1958, Lieutenant Peter Klerck, a South African Navy officer serving on the island, introduced various animals. The following extract of an article, written by his son Michael Klerck, who lived on the island from an early age, describes the local fauna: My father, a naval officer at the time, with the sanction of Doctor Hey, director of Nature Conservation, turned an area into a nature reserve. A 'Noah's Ark' berthed in the harbour sometime in 1958. They stocked the island with tortoise, duck, geese, buck (which included Springbok, Eland, Steenbok, Bontebok and Fallow Deer), Ostrich and a few Wildebeest which did not last long. All except the fallow deer are indigenous to the Cape. Many animals are still there including three species of tortoise—the most recently discovered in 1998—two Parrot Beaked specimens that have remained undetected until now. The leopard or mountain tortoises might have suspected the past terror; perhaps they had no intention of being a part of a future infamy, but they often attempted the swim back to the mainland (they are the only species in the world that can swim). Boats would lift them out of the sea in Table Bay and return them to us. None of the original 12 shipped over remain, and in 1995, four more were introduced—they seem to have more easily accepted their home as they are still residents. One resident brought across a large leopard tortoise discovered in a friend's garden in Newlands, Cape Town. He lived in our garden and grew big enough to climb over the wall and roam the island much like the sheep in Van Riebeeck's time. As children we were able to ride his great frame comfortably, as did some grown men. The buck and ostriches seemed equally happy and the ducks and Egyptian Geese were assigned a home in the old quarry, which had, some three hundred years before, supplied the dressed stone for the foundations of the Castle; at the time of my residence it bristled with fish. Recent reports in Cape Town