Data Zone
The site was identified as internationally important for bird conservation in 2015 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 |
|---|---|---|---|---|
| Red-billed Tropicbird Phaethon aethereus | LC | breeding (1959) | 500 pairs | A4ii |
| White-tailed Tropicbird Phaethon lepturus | LC | breeding (1959) | 1,000 pairs | A4ii |
| Band-rumped Storm-petrel Hydrobates castro | LC | breeding (1958–1959) | 3,000 birds | A4ii |
| Ascension Frigatebird Fregata aquila | VU | breeding (2001–2002) | 12,500 birds | A1, A4ii |
| Masked Booby Sula dactylatra | LC | breeding (2001–2002) | 9,000–9,332 birds | A4ii |
| Atlantic White Tern Gygis alba | LC | breeding (2015) | min 854 birds | A4i |
| A4iii Species group - seabirds | n/a | breeding (2001–2002) | 20,000-49,999 birds | A4iii |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 2014 | Boatswain Bird Island Sanctuary | Sanctuary (Ia) | 100 |
| 2014 | Boatswainbird Island Protected Area - Nature Sanctuary | Other (-) | 100 |
| Land use | % of IBA |
|---|---|
| fisheries/aquaculture | - |
| nature conservation and research | - |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Boatswainbird Island (St Helena (to UK)). Downloaded from
https://datazone.birdlife.org/site/factsheet/boatswainbird-island-iba-st-helena-(to-uk) on 23/12/2024.