Pinguinus impennis (English spelling) Pinguinus simpennis

…During the breeding season, they perch side by side on rocks and call out to each other with their loud, booming cries of "Uru-roon" or "Oro-roon." The great auk, Pinguinus impennis (illustration), is a large species that once flourished in the North Atlantic, reaching a total length of 75 cm. Its beak is flat on both sides, its upper surface is black, and there is a white line in front of its eyes. Its wings have degenerated, it has no flying ability, and it was overfished by fishermen for oil, becoming extinct around 1844. …

*Some of the terminology that mentions "Pinguinus impennis" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…繁殖期には岩の上に並んでとまりウルルーン，またはオロローンとよくひびく声で鳴き合う。　オオウミガラスPinguinus impennis(英名great auk)（イラスト）はかつて北大西洋に多産した全長75cmもある大きな種で，くちばしは左右に平たく，体の上面は黒くて眼の前に白い線がある。翼が退化し，飛翔（ひしよう）力はなく，油をとるため漁船員に乱獲され，1844年ころに絶滅した。…

※「Pinguinus impennis」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