JP136
Okinoshima and Koyajima islets


Country/territory: Japan

IBA criteria met: A1, A2, A4ii (2004)
For more information about IBA criteria, please click here

Area: 97 hectares (0.97 km2)

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


Site description (2007 baseline)
Okinoshima is an islet off of Fukuoka City having an area of 85 ha. The northwest and south sides of the islet are covered with deep forests mainly composed of Machilus tunbergii. Koyajima is a rocky reef situated about 1km south-southeast of Okinoshima. There are no trees covering the rocky reef leaving it almost naked except Carex oahuensis.


Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Okinoshima and Koyajima islets (Japan). Downloaded from https://datazone.birdlife.org/site/factsheet/okinoshima-and-koyajima-islets-iba-japan on 23/12/2024.