• Summary
• Text account
• Data table and detailed info
• Map
• Reference and further resources

The site was identified as important in 2001 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 List1	Season	Year(s)	Size	IBA criteria
Inaccessible Island Rail Laterallus rogersi	VU	resident	1989	2,500-5,000 breeding pairs	A1, A2, A4i
Southern Rockhopper Penguin Eudyptes chrysocome	VU	breeding	1990	17,000-27,000 breeding pairs	A1
White-faced Storm-petrel Pelagodroma marina	LC	breeding	1987	5,000-50,000 breeding pairs	A4ii
White-bellied Storm-petrel Fregetta grallaria	LC	breeding	1987	5,000-50,000 breeding pairs	A4ii
Atlantic Yellow-nosed Albatross Thalassarche chlororhynchos	EN	breeding	1983	1,100 breeding pairs	A1, A4ii
Tristan Albatross Diomedea dabbenena	CR	breeding	1990	2-3 breeding pairs	A1
Sooty Albatross Phoebetria fusca	EN	breeding	1987	200 breeding pairs	A1, A4ii
Broad-billed Prion Pachyptila vittata	LC	breeding	1987	50,000-500,000 breeding pairs	A4ii
Soft-plumaged Petrel Pterodroma mollis	LC	breeding	1987	5,000-50,000 breeding pairs	A4ii
Spectacled Petrel Procellaria conspicillata	VU	breeding	1999	2,500-9,999 individuals	A1, A4ii
Great Shearwater Ardenna gravis	LC	breeding	1987	1,500,000-2,000,000 breeding pairs	A4ii
Subantarctic Shearwater Puffinus elegans	LC	breeding	1987	5,000-50,000 breeding pairs	A4ii
Antarctic Tern Sterna vittata	LC	breeding	1983	86 breeding pairs	A4i
Tristan Thrush Turdus eremita	NT	resident	1998	present	A1, A2
Inaccessible Island Finch Nesospiza acunhae	VU	resident	1998	present	A1, A2
Inaccessible Island Finch Nesospiza acunhae	VU	resident	1998	present	A1, A2
A4iii Species group - seabirds	n/a	breeding	1987-1990	5,000,000-9,999,999 individuals	A4iii

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2001) may differ.

Year	Protected Area	Designation	% overlap with IBA
1995	Gough and Inaccessible Islands	World Heritage Site (natural or mixed)	100
1997	Inaccessible Island	Wildlife Reserve	100
2008	Inaccessible Island	Ramsar Site, Wetland of International Importance	-

Land use	% of IBA
nature conservation and research	-

---

Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Inaccessible Island (St Helena (to UK)). Downloaded from https://datazone.birdlife.org/site/factsheet/inaccessible-island-iba-st-helena-(to-uk) on 22/11/2024.