Ikimono KokuhoLiving Treasures of Japan
National Natural Monument
Birds

Rhinoceros Auklet

Cerorhinca monocerata

Photo: Tokumi / Copyrighted free use / Wikimedia Commons

The rhinoceros auklet is an auk that grows a small horn-like knob at the base of its bill in the breeding season. It catches fish at sea and returns at night to burrows on its island. Breeding colonies such as Teuri Island in Hokkaido and islands in Miyagi are designated Natural Monuments as seabird nesting grounds.

Scientific name
Cerorhinca monocerata
Group
Birds
Prefectures
Hokkaido, Miyagi
When to see
May to July
日本語
ウトウ
简体中文
角嘴海雀

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Natural Monuments related to the Rhinoceros Auklet

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Best timeSeason

Teuri Island in Haboro, Hokkaido, is one of the world's largest breeding colonies. During chick-rearing from May to July, birds can be seen returning to burrows with food at dusk near the Akaiwa observation point.

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Frequently asked questions

Yes. The Rhinoceros Auklet is protected as a Natural Monument (2 national and 1 prefectural designations). Each designated site is listed under "Natural Monuments related to the Rhinoceros Auklet" on this page.

The Rhinoceros Auklet is designated as a species without a fixed area and lives in places such as Hokkaido, Miyagi.

The Rhinoceros Auklet is mainly seen in May to July. Teuri Island in Haboro, Hokkaido, is one of the world's largest breeding colonies. During chick-rearing from May to July, birds can be seen returning to burrows with food at dusk near the Akaiwa observation point.

Animals related to the Rhinoceros Auklet

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