Today, November 11th, is the day of St. Martin (of Tours, to be precise).
The day lends its name to the "estate di San Martino", which is the Italian name for Indian Summer.
It is also marked in Sweden as Mårtengås. Gås is a goose, and Mårten is, of course, the Swedish form of Martin. The association with the goose is specific to Nordic countries and is not rooted in the legend of the saint. Instead, I guess it stems from the fact that this is a good time to slaughter domestic geese (the wild ones have left the Nordic countries a couple of months ago). Geese eat grass, and accumulate fat in late summer. By now, green grass begins to be in short supply, because there has been frost for several weeks already, so there is no hope to fatten the geese any further.
Traditionally, a dish made of goose blood is served in Sweden on this day (I suppose that the reason is that blood does not keep very well, so it was probably consumed first; the meat can be kept longer, especially in cold weather; and geese are large enough to justify preserving the meat, as in the goose sausages and salted legs that are traditional in several places).