also: だいさぎ
noun
great egret; great white egret
Refers to the bird species Ardea alba. In everyday Japanese, the katakana name ダイサギ is standard.
川の浅瀬でダイサギが魚を捕っていた。
A great egret was catching fish in the shallows of the river.
From 大 (dai, 'large') + 鷺 (sagi, 'heron/egret'). The reading だいさぎ follows standard on'yomi for the first character and kun'yomi for the second.