Water-fowl are so numerous, and of such various kinds, that it would
fill a volume to describe them properly; I shall therefore only speak of
some of them. I have, though very seldom, met with an immense number of
geese like those of Europe in lakes. But of ducks there is such a
variety and number, not only in the lakes but in the rivers also, that
their dung defiles the water so as to render it unfit to be drunk.