noun
black goat
Refers to a goat with black fur. Often appears in the children's song 'やぎさんゆうびん' (The Goat Mail).
牧場に黒ヤギが二頭いる。
There are two black goats on the farm.
「しろやぎさんからお手紙ついた、くろやぎさんたら読まずに食べた」という歌がある。
There is a song that goes, 'The white goat got a letter, but the black goat ate it without reading it.'
Compound of 黒 (くろ, 'black') and ヤギ (やぎ, 'goat'). The word ヤギ is of uncertain origin, possibly from an ancient Japanese word or a borrowing.