Data Zone
Year of most recent IBA criteria assessment: 2015
Populations of IBA trigger species| Species | Current IUCN Red List Category | Season | Year(s) of estimate | Population estimate | IBA Criteria Triggered |
|---|---|---|---|---|---|
| Red-billed Tropicbird Phaethon aethereus | LC | breeding | 1959 | 500 breeding pairs | A4ii |
| White-tailed Tropicbird Phaethon lepturus | LC | breeding | 1959 | 1,000 breeding pairs | A4ii |
| Band-rumped Storm-petrel Hydrobates castro | LC | breeding | 1958-1959 | 3,000 individuals | A4ii |
| Ascension Frigatebird Fregata aquila | VU | breeding | 2001-2002 | 12,500 individuals | A1, A4ii |
| Masked Booby Sula dactylatra | LC | breeding | 2001-2002 | 9,000-9,332 individuals | A4ii |
| Common White Tern Gygis alba | LC | breeding | 2015 | min 854 individuals | A4i |
| A4iii Species group - seabirds | n/a | breeding | 2001-2002 | 20,000-49,999 individuals | A4iii |
Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.
For more information about the IBA assessment process and criteria please click here
| Protected Area | Designation | Area (ha) | Relationship with IBA | Overlap with IBA (ha) |
|---|---|---|---|---|
| Boatswainbird Island Protected Area - Nature Sanctuary | Other | 5 | is identical to site | 5 |
| Boatswain Bird Island Sanctuary | Sanctuary | 5 | is identical to site | 0 |
| Land-use | Extent (% of site) |
|---|---|
| fisheries/aquaculture | - |
| nature conservation and research | - |
Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Boatswainbird Island. Downloaded from
http://www.birdlife.org on 24/05/2022.
