IBA Criteria

Year of most recent IBA criteria assessment: 2002

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Dark-backed Imperial-pigeon Ducula lacernulata LC resident 2000 present A2
Wallace's Scops-owl Otus silvicola LC resident 2000 present A2
Sumba Cicadabird Edolisoma dohertyi LC resident 2000 present A2
Brown-capped Fantail Rhipidura diluta LC resident 2000 present A2
Flores Monarch Symposiachrus sacerdotum EN resident 2004 present A1, A2
Flores Crow Corvus florensis EN resident 2004 present A1, A2
Yellow-spectacled White-eye Heleia wallacei LC resident 2000 present A2
Thick-billed White-eye Heleia crassirostris LC resident 2000 present A2
Golden-rumped Flowerpecker Dicaeum annae LC resident 2000 present A2
Flame-breasted Sunbird Cinnyris solaris LC resident 2000 present 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)
2012 medium near favourable high
Was the whole site covered? Yes State assessed by Habitat
Accuracy of information good

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Agricultural expansion and intensification annual & perennial non-timber crops - small-holder farming happening now small area/few individuals (<10%) slow but significant deterioration low
Invasive and other problematic species and genes invasive non-native/alien species/diseases - named species happening now some of area/population (10-49%) slow but significant deterioration medium
Transportation and service corridors roads and railroads happening now small area/few individuals (<10%) 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 5500 5500 - moderate (70-90%) near favourable

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Most of site (50-90%) covered (including the most critical parts for important bird species) A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species The conservation measures needed for the site are being comprehensively and effectively implemented high
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.

Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Sesok. Downloaded from on 03/12/2022.