noun
General term for bird feathers or plumage. Often used in contexts like birdwatching, biology, or describing the appearance of birds. Compare with 羽毛 (うもう), which is more common in everyday language.
See also: 羽毛
その鳥は美しい鳥毛を持っている。
That bird has beautiful plumage.
鳥毛を集めて標本を作る。
I collect feathers to make specimens.
noun
decorative feathers on a spear sheath or pole
Historical term referring to ornamental feathers attached to the sheath of a spear or to a pole, used in traditional Japanese contexts such as festivals or military displays.
槍の鞘に付けられた鳥毛が風に揺れていた。
The decorative feathers on the spear sheath swayed in the wind.