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 |
|---|---|---|---|---|
| Tristram's Storm-petrel Hydrobates tristrami | LC | breeding (2014) | min 68,120 nests | A4ii |
| Streaked Shearwater Calonectris leucomelas | NT | breeding (2014–2016) | min 2,258,860 nests | A4ii |
| Japanese Murrelet Synthliboramphus wumizusume | VU | breeding (2015) | min 1,019 birds | A1, A4ii |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Marine Neritic | 100 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Northern Izu Islands - Marine (Japan). Downloaded from
https://datazone.birdlife.org/site/factsheet/northern-izu-islands--marine-iba-japan on 23/12/2024.