Order Pelecaniformes, family Heronidae. Total length 63-68cm. A white-bodied heron, similar to the Little Egret, but differs in its yellow bill (the Little Egret's is black) and short, bushy crest on the back of its head. Its toes are yellow like the Little Egret's. In its winter plumage, it loses its crest. It breeds along the coasts of southern Primorsky Krai, northeast North Korea, eastern China, and the Yellow and Bohai Seas of the western Korean peninsula, and winters along the coasts of Vietnam, the Philippines, and Indonesia, but its population is small. It occasionally migrates to Japan as a migratory or wintering bird, and is sometimes seen on tidal flats, river mouths, and large rice fields on the coast. In 1987, about 50 of them were found breeding with the Little Egret on the Korean New Island in the Republic of Korea. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
ペリカン目サギ科。全長 63~68cm。全身白色のサギで,コサギに似ているが,嘴の黄色いこと(コサギは黒い)や,後頭の冠羽(→羽冠)が短くてふさふさしていることで異なる。趾(あしゆび)はコサギのように黄色である。冬羽(→羽衣)では冠羽がなくなる。ロシア沿海地方南部から北朝鮮北東部沿岸域と,中国東部や朝鮮半島西部の黄海,ポー(渤)海の沿岸域に繁殖分布し,ベトナムからフィリピン,インドネシアの島にかけての沿岸で越冬するが,生息数は少ない。日本ではまれに旅鳥か冬鳥(→渡り鳥)として渡来し,ときどき海岸の干潟,河口,広い水田などで見られる。1987年に大韓民国(韓国)の韓国新島で約 50羽がコサギとともに繁殖しているのが発見されている。
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