Chatham (offshore)

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
White-faced Storm-petrel Pelagodroma marina LC breeding 1994 1,680,000 mature individuals A4ii
Northern Royal Albatross Diomedea sanfordi EN breeding 2002 11,600 mature individuals A1, A4ii
Buller's Albatross Thalassarche bulleri NT breeding 1994-2002 36,300 mature individuals A1, A4ii
Chatham Albatross Thalassarche eremita VU - 1997-1999 9,150 mature individuals A1, A4ii
Northern Giant Petrel Macronectes halli LC breeding 1993 4,000 mature individuals A4ii
Broad-billed Prion Pachyptila vittata LC breeding 1960-1989 352,000-1,000,000 mature individuals A4ii
Chatham Petrel Pterodroma axillaris VU breeding 1991-2015 1,100 mature individuals A1, A4i
Magenta Petrel Pterodroma magentae CR breeding 1978-2015 80-100 mature individuals A1, A4ii

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

Protection status:

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
East Chatham Rise Benthic Protection Area 536,905 protected area overlaps with site 0
Blink Benthic Protection Area 29 protected area contained by site 0
4C2 d Closed Seamount Area 9,095 protected area contained by site 0

Recommended citation
BirdLife International (2020) Important Bird Areas factsheet: Chatham (offshore). Downloaded from on 11/07/2020.