Data Zone
The site was identified as internationally important for bird conservation in 2016 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.
Populations meeting IBA criteria ('trigger species') at the site:| Species | Red List | Season (year/s of estimate) | Size | IBA criteria |
|---|---|---|---|---|
| Japanese Murrelet Synthliboramphus wumizusume | VU | breeding (1974) | min 200 pairs | A1, A4ii |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Marine Neritic | 100 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Okinoshima and Koyajima islands - Marine (Japan). Downloaded from
https://datazone.birdlife.org/site/factsheet/okinoshima-and-koyajima-islands--marine-iba-japan on 23/12/2024.