The expedition sighted the coast of the South Island of New Zealand on 20 March, 1773, and anchored in Dusky Bay on the following day, having been 117 days at sea, and sailed 10,980 miles without once seeing land. Yet only one man had been seriously ill with scurvy on this long voyage, and the excellent health of the ship's crew is justly attributed to the antiscorbutics they had carried with them, especially to the weak beer and to the portable broth. Immediately after they came to an anchor in Dusky Bay one of the ship's officers killed a seal (of which there were many lying about on the rocks), the meat of which was most welcome to the messes. Cook had brought with him numbers of domestic animals and birds from England to introduce into these new lands, but a good many of them had been killed by the stormy and cold weather through which the expedition had passed, and had even suffered from a form of scurvy, so that when the sheep, for example, were landed in New Zealand their teeth were so loose and their gums so tender that they could not masticate the grass of the country, and could only feed feebly on leaves. The geese were landed on the South Island of New Zealand in the hope that they might increase and multiply and so furnish this part of the world with a valuable domestic bird. But apparently they died out without leaving any issue, and about the only creature that Cook's expedition succeeded in introducing permanently into New Zealand was the pig. But this part of New Zealand was found to abound in native ducks of five different kinds. "The largest are as big as a Muscovy duck, with a very beautiful variegated plumage, on which account we called it the painted duck: both male and female have a large white spot on each wing; the head and neck of the latter is white, but all the other feathers, as well as those on the head and neck of the drake, are of a dark variegated colour.[93] The second sort have a brown plumage, with bright-green feathers in their wings, and are about the size of an English tame duck. The third sort is the blue-grey duck or 'whistling duck', as some called them from the whistling noise they made. What is most remarkable in these is that the end of their beaks is soft, and of a skinny, or more properly, cartilaginous substance. The fourth sort is something bigger than teal, and all black except the drake, which has some white feathers in his wing."[93]