Blue-faced booby - Blue-faced booby

...The species that build nests on the island by trampling down seaweed and grasses lay one or two eggs per clutch, but the two species that build nests in shrubs or trees lay only one egg. In Japan, the common booby S. leucogaster , which is distributed widely around the world and is about 75 cm in length, breeds in the southern Izu Islands, the Ogasawara Islands, and the Nansei Islands, and the blue-faced booby S. dactylatra , which is about 85 cm in length, breeds in the Senkaku Islands. Also, a small number of red-footed boobies S. sula , which nest in trees and are about 70 cm in length, breed in the southern Nansei Islands. ...

*Some of the terminology that refers to the "blue-faced booby" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…島の地上に海草や草を踏み固めて巣をつくる種は1腹1～2卵を産むが，灌木や樹上に巣をつくる2種はただ1卵産むのみである。　日本には，世界に広く分布し，全長約75cmのカツオドリS.leucogasterが伊豆諸島南部，小笠原諸島，南西諸島で，全長約85cmのアオツラカツオドリS.dactylatraが尖閣諸島で繁殖している。また，南西諸島南部には樹上営巣性で全長約70cmのアカアシカツオドリS.sulaが少数繁殖する。…

※「アオツラカツオドリ」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