Snares (eastern islands)

IBA Criteria

Year of most recent IBA criteria assessment: 2018

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Snares Penguin Eudyptes robustus VU breeding 1968-1985 11,439-23,000 breeding pairs A1, A4ii
Buller's Albatross Thalassarche bulleri NT breeding 1948-2014 6,480-8,898 breeding pairs A1, A4ii
Sooty Shearwater Ardenna grisea NT breeding 1970-2001 2,500,000-3,500,000 nests A1, A4ii
Common Diving-petrel Pelecanoides urinatrix LC breeding 1999-2000 91,980-255,941 nests A4ii
Snares Island Snipe Coenocorypha huegeli NT resident 2012-2013 400 breeding pairs A1, A4i
Snares Tomtit Petroica dannefaerdi VU resident 1982-1988 500 breeding pairs A1, A2
Snares Fernbird Poodytes caudatus VU resident 1982-1988 1,500 breeding pairs A1, A2
A4iii Species group - seabirds n/a - - 2,500,000-4,999,999 breeding pairs 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

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Snares Islands Nature Reserve 368 protected area contains site 0
New Zealand Sub-Antarctic Islands World Heritage Site (natural or mixed) 1,386,792 protected area contains site 0


IUCN Habitat Habitat detail Extent (% of site)
Marine Coastal/Supratidal -
Rocky areas (eg. inland cliffs, mountain peaks) -
Grassland Tussock grasslands -
Forest -
Shrubland -
Marine Intertidal -
For further information about the habitat classification please click here.

Recommended citation
BirdLife International (2023) Important Bird Areas factsheet: Snares (eastern islands). Downloaded from on 28/01/2023.