noun
grey-headed woodpecker; Picus canus
A species of woodpecker found in Japan and Eurasia; the Japanese name is usually written in katakana.
森でヤマゲラの鳴き声を聞いた。
I heard the call of a grey-headed woodpecker in the forest.
ヤマゲラはアカゲラより少し大きい。
The grey-headed woodpecker is a little larger than the great spotted woodpecker.
アカゲラ is the great spotted woodpecker, a different species; ヤマゲラ is the grey-headed woodpecker.
Compound of 山 (yama, 'mountain') and 啄木鳥 (gera, 'woodpecker'), literally 'mountain woodpecker'.