PIED

[adjective] [before noun; not gradable] [specialized] - (used esp. in the names of birds) having markings of two or more different colours, usually black and whitepied kingfishersThe Pied Piper (of Hamelin) is a character in a children's story who led all the children away from the town of Hamelin by playing beautiful music after the town officials refused to pay him for getting rid of all the rats.