The site was identified as important in 2014 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.
Populations meeting IBA criteria ('trigger species'):Species | Current IUCN Red List Category | Season | Year(s) | Population estimate at site | IBA criteria met |
---|---|---|---|---|---|
White-faced Storm-petrel Pelagodroma marina | LC | breeding | 1994 | 840,000 breeding pairs | A4ii |
Broad-billed Prion Pachyptila vittata | LC | breeding | 1960-1994 | 176,000-499,999 breeding pairs | A4ii |
Chatham Islands Petrel Pterodroma axillaris | VU | breeding | 1991-2010 | 335-1,000 breeding pairs | A1, A4ii |
Pitt Island Shag Phalacrocorax featherstoni | EN | breeding | 1961-2003 | 39-63 nests | A1, A4i |
Chatham Islands Oystercatcher Haematopus chathamensis | EN | resident | 2009 | 3 breeding pairs | A1, A4i |
Chatham Islands Snipe Coenocorypha pusilla | VU | resident | 1996 | 700-800 breeding pairs | A1, A4i |
Black Robin Petroica traversi | VU | breeding | 2008-2009 | 103-128 individuals | A1 |
A4iii Species group - seabirds | n/a | breeding | - | 1,000,000-2,499,999 breeding pairs | A4iii |
The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2014).
Protected area (PA) | PA designation | PA area (ha) | Relationship of PA with IBA | Overlap of PA with IBA (ha) |
---|---|---|---|---|
Rangatira | Nature Reserve | 221 | protected area contained by site | 0 |
Habitat (IUCN level 1) | Habitat detail | Extent (% of site) |
---|---|---|
Marine Coastal/Supratidal | - | |
Shrubland | - | |
Forest | - | |
Marine Intertidal | - |
Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Rangatira South East Island. Downloaded from
http://datazone.birdlife.org/site/factsheet/rangatira-south-east-island-iba-new-zealand on 22/09/2023.