Pied piper?

There are 9 subspecies of the Australian Magpie. Mature birds have red eyes. Immature ones have brownish eyes. Australian magpies have a warbling call. New Zealand poet Denis Glover wrote "’quardle oodle ardle wardle doodle,’ the magpies said.” Part of their Latin name means piper.

During nesting season, if a magpie feels threatened, they will swoop at the intruder and snap their beak. They come from behind so it can be a bit frightening. Hence this sign…