Norfolk Island

IBA Criteria

Year of most recent IBA criteria assessment: 2009

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Red-tailed Tropicbird Phaethon rubricauda LC resident 1978-1979 200 breeding pairs A4ii
Wedge-tailed Shearwater Ardenna pacifica LC breeding 1978-2008 10,000-100,000 individuals A4ii
Red-fronted Parakeet Cyanoramphus novaezelandiae LC resident 2007-2008 50-400 individuals A1
Norfolk Gerygone Gerygone modesta NT resident 2000 1,500 breeding pairs A1, A2
White-chested White-eye Zosterops albogularis CR resident 2000 10 breeding pairs A1, A2
Slender-billed White-eye Zosterops tenuirostris NT resident 2000-2008 1,000 breeding pairs A1, A2
A4iii Species group - seabirds n/a breeding 1978-2008 10,000-100,000 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

IBA Monitoring

Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2016 high not assessed not assessed
Was the whole site covered? No State assessed by unset
Accuracy of information -

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Invasive and other problematic species and genes invasive non-native/alien species/diseases - named species happening now majority/most of area/population (50-90%) moderate to rapid deterioration high

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Not assessed Not assessed Not assessed not assessed
For more information about IBA monitoring please click here

IBA Protection

Protection status:

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Norfolk Island (Mt Pitt) National Park (Commonwealth) 493 protected area contained by site 480
Norfolk Island Botanic Gardens (Commonwealth) 6 protected area contained by site 0
Norfolk Commonwealth Marine Reserve 18,844,435 protected area overlaps with site 0


IUCN Habitat Habitat detail Extent (% of site)
Artificial/Terrestrial Improved grassland & pasture, Other urban & industrial areas, Perennial crops, orchards & groves -
Coastline Intertidal mud, sand & salt flats, Sea cliffs, rocky shores & rocky islets -
Forest Other forests & woodlands, Rainforest & vine thickets -
Introduced vegetation -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
agriculture -
rangeland/pastureland -
urban/industrial/transport -
nature conservation and research -
For further information about the land use classification please click here.

Land ownership
A mix of private (freehold and leasehold land) and Commonwealth/Federal government (managed by Parks Australia).

Recommended citation
BirdLife International (2021) Important Bird Areas factsheet: Norfolk Island. Downloaded from on 16/01/2021.