IBA Criteria

Year of most recent IBA criteria assessment: 2006

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Many-coloured Fruit-dove Ptilinopus perousii LC resident 2005 common A2
Ptilinopus porphyraceus NR resident 2005 common A2
Blue-crowned Lorikeet Vini australis LC resident 2005 frequent A2
Foulehaio carunculatus NR resident 2005 common A2
Orange-breasted Myzomela Myzomela jugularis LC resident 2005 common A2
Polynesian Triller Lalage maculosa LC resident 2005 common A2
Vanikoro Flycatcher Myiagra vanikorensis LC resident 2005 common A2
Ogea Monarch Mayrornis versicolor NT resident 1986 1,300-2,000 mature individuals A1, A2
Slaty Monarch Mayrornis lessoni LC resident 2005 rare A2
Fiji Shrikebill Clytorhynchus vitiensis LC resident 2005 uncommon A2
Polynesian Starling Aplonis tabuensis LC resident 2005 common A2

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)
2018 medium near favourable negligible
Was the whole site covered? Yes State assessed by Habitat
Accuracy of information poor

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Climate change and severe weather storms and floods likely in long term (beyond 4 years) majority/most of area/population (50-90%) slow but significant deterioration medium
Invasive and other problematic species and genes invasive non-native/alien species/diseases - named species happening now whole area/population (>90%) no or imperceptible deterioration low

Condition of habitat (state)
Habitat Habitat Detail Reference Area (ha) Actual Area (ha) % of habitat remaining % of carrying capacity (overall) Result
Forest 1859 1830 - moderate (70-90%) unfavourable

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Little/none of site covered (<10%) No management planning has taken place Very little or no conservation action taking place negligible
For more information about IBA monitoring please click here


IUCN Habitat Habitat detail Extent (% of site)
Forest -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
agriculture -
For further information about the land use classification please click here.

Recommended citation
BirdLife International (2019) Important Bird Areas factsheet: Ogea. Downloaded from on 17/11/2019.