Bonin Grosbeak (English name: Carpodacus ferreorostris)

Japanese: オガサワラマシコ(英語表記)Carpodacus ferreorostris; Bonin grosbeak
Bonin Grosbeak (English name: Carpodacus ferreorostris)
Passerine, Fringillidae. Total length 18-19cm. A species endemic to Chichijima, probably only in the Ogasawara Islands, it became extinct after being collected in 1827-28. At least 10 specimens collected at that time are kept in museums in Europe and the United States, but none are in Japan. Considering the size of its head, it has a very thick and large beak. Sexes are different. Males are olive brown on the back and light brown or dull white on the underside, with a reddish tinge all over the body, especially the head. Females are olive brown without the reddish tinge. Both sexes have indistinct vertical stripes on their backs. They often inhabit coastal forests, and are said to have mainly fed on the ground.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:
スズメ目アトリ科。全長 18~19cm。小笠原諸島のおそらく父島のみの固有種で,1827~28年に採集されたあとに絶滅した。そのときに採集された少なくとも 10羽の標本はヨーロッパやアメリカ合衆国の博物館に所蔵されているが,日本には 1点もない。頭の大きさからみると非常に分厚くて大きな嘴が特徴である。雌雄異色。雄は背面がオリーブ褐色,下面が淡褐色ないしくすんだ白色で,全身に赤みを帯びるが,特に頭部は赤い。雌は赤みを帯びず,全身オリーブ色。雌雄とも背中に不鮮明な縦斑がある。海岸の森林に多く生息し,おもに地上で採食していたという。

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