About the same size as the common crow, the Formosan Blue Magpie is stunning in appearance with a black head, red beak and claws, and blue body plumage.
有些則差別大得讓人以為是兩種鳥，譬如中南部郊外常見的紅山椒鳥，雄的腹部是豔紅色，雌的卻是鮮黃色，當它們群聚在樹梢上時，就像樹枝上掛了許多不同顏色的辣椒。