Have yourself a serene little Christmas

Available for over a year

Pull on your best Christmas jumper and have an eggnog to the festive sounds of reindeer. Out upon the tundra, there's quite a lot more of them than you’d need to pull even a very high profile sleigh. This recording, contributed by BBC Four, is of 2,500 Rangifer tarandus as they slowly migrate, eating and clinking their bells as they go.