…The color of the feathers varies by species, but many species have ornamental feathers on the back and chest, and many also have a crest on the back of the head. In addition to the usual plumage colors, white types of the Japanese Egret (Egretta sacra ) and the Great Spotted Heron ( Egretta rufescens ) are known to have white feathers all over their bodies. Powder feathers are present in all herons. … *Some of the terminology that refers to the "great heron" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…羽色は種によって異なるが,多くの種では背や胸に飾羽があり,また後頭に冠羽をもつものも少なくない。クロサギEgretta sacraやアカゲサギE.rufescensでは,通常の羽色のほかに全身白色の白色型が知られている。粉綿羽(ふんめんう)はすべてのサギ類に存在している。… ※「アカゲサギ」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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