Like four-and-twenty blackbirds? And magpies!
I believe the answer is:
pied-
Can you help me to learn more?
(Other definitions for pied- that I've seen before include "Of various hues" , "This Piper was nasty in Hamelin" , "Coloured like the piper" , "With patches coloured differently" , "This Piper behaved badly in children's story from Hamelin" .)