換かん羽う期き

noun

molting season

Refers to the period when birds or other animals shed and replace feathers, fur, or skin. Used in biological and ornithological contexts.

• 換かん羽う期きの鳥とりは羽はねが抜ぬけやすく、体たい力りょくを消しょう耗もうする。

  Birds in molting season tend to lose feathers easily and expend a lot of energy.