Bentenjima islet

Country/territory: Japan

IBA criteria met: A4i, A4iii (2004)
For more information about IBA criteria, please click here

Area: 9 ha

Wild Bird Society of Japan
IBA conservation status
Year of assessment (most recent) State (condition) Pressure (threat) Response (action)
2015 favourable low low
For more information about IBA monitoring, please click here

Site description (2007 baseline)
Bentenjima islet is located 800 m off shore of Ohmasaki, the northernmost of Honshu. The distance between east and west of the islet is about 400 m, south and north is about 450 m, and the area is 9 ha with its perimeter of 2.7 km, and it is an uninhabited rocky islet with the highest height of 11 m. In the middle of the islet there is a flat area part of 10-12 m diameters. Colonies of Artemisia indica var. maximowiczii and Elymus mollis are found around this flat part, and this vegetation is 5-6 m in height leading to the shore via small cliffs of 3-4 m height.

Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Bentenjima islet. Downloaded from on 02/12/2023.