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The site was identified as important in 2002 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List1	Season	Year(s)	Size	IBA criteria
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	NT	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

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2002) may differ.

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2002. The most recent assessment (2012) is shown below.

State (condition of the trigger species' habitats)
Habitat	Quantity (% remaining)	Quality (% carrying capacity)	Result
Forest	-	moderate (70-90%)	near favourable

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Invasive and other problematic species and genes	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Agricultural expansion and intensification	happening now	small area/few individuals (<10%)	slow but significant deterioration	low
Transportation and service corridors	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other 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

Habitat1	Habitat detail	% of IBA
Forest		83

1. IUCN Habitat classification.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Sesok (Indonesia). Downloaded from https://datazone.birdlife.org/site/factsheet/sesok-iba-indonesia on 23/11/2024.