羽は色いろ

noun

plumage colour; colour of a bird's feathers

Refers to the colour or colour pattern of a bird's feathers. Used in ornithological contexts and everyday descriptions of birds.

• この鳥とりは羽は色いろが鮮あざやかだ。

  This bird has vivid plumage.

• 羽は色いろで雌し雄ゆうを見み分わけることができる。

  You can tell males from females by their plumage colour.