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• Reference and further resources

The site was identified as important in 2001 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
Philippine Duck Anas luzonica	VU	resident	2001	min 100 individuals	A1, A4i
Spotted Imperial-pigeon Ducula carola	VU	resident	1976	present	A1
Sarus Crane Grus antigone	VU	breeding	1965	present	A1
Purple Heron Ardea purpurea	LC	resident	1999	present	A4i
South Philippine Hawk-eagle Nisaetus pinskeri	EN	resident	1989	present	A1
Southern Silvery Kingfisher Ceyx argentatus	NT	resident	1999	present	A1, A2
Rufous-lored Kingfisher Todiramphus winchelli	VU	resident	1900-1919	present	A1
Celestial Monarch Hypothymis coelestis	VU	resident	1900-1919	present	A1, A2

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2001) may differ.

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2001. The most recent assessment (2001) is shown below.

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Biological resource use	happening now	some of area/population (10-49%)	moderate to rapid deterioration	high
Agricultural expansion and intensification	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Pollution	happening now	small area/few individuals (<10%)	slow but significant deterioration	low
Natural system modifications	likely in long term (beyond 4 years)	some of area/population (10-49%)	no or imperceptible deterioration	low

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Not assessed	Not assessed	Not assessed	not assessed

Year	Protected Area	Designation	% overlap with IBA
1996	Agusan Marsh	Wildlife Sanctuary	100
1999	Agusan Marsh Wildlife Sanctuary	Ramsar Site, Wetland of International Importance	-

Habitat1	Habitat detail	% of IBA
Forest		major (>10)
Wetlands (inland)		major (>10)
Artificial/Terrestrial		-

1. IUCN Habitat classification.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Agusan marsh (Philippines). Downloaded from https://datazone.birdlife.org/site/factsheet/agusan-marsh-iba-philippines on 22/11/2024.