A recent birdwatchers' news-letter had raised concerns about goats overrunning the island. Since the 1500s, it had been a common mariners' practice to drop off livestock such as goats, pigs, chickens and even giant tortoises on islands as nourishment for shipwrecked mariners. Indeed, Alexander Selkirk, the prototype Robinson Crusoe, survived four years as a castaway on one of the Juan Fernández islands, off Chile, on such feral goats. Narcondam was no exception in 1899, A.O. Hume quoted Robert Tytler saying that "pigs, goats and fowls" had been released there. We don't know if these were eaten up by unfortunate sailors or whether they eventually died out but, in 1976, the Indian Police brought two pairs of goats to keep their personnel stationed on the island well-stocked with animal protein. Perhaps the men got sick of eating mutton every day because, by 1998, there were 400 of the voracious caprines rapidly eating their way through the native island vegetation.