black grouse
A bird species (Tetrao tetrix). The male is called blackcock, the female greyhen, but the Japanese term covers both sexes.
The black grouse inhabits the forests of Europe.
The male black grouse has black feathers.
Katakana spelling is standard for this bird name.
Kanji spelling is rare; the word is usually written in kana.
Compound of 黒 (kuro, 'black') and 雷鳥 (raichō, 'ptarmigan'), referring to its dark plumage and relation to the ptarmigan family.