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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
Japanese Night Heron Gorsachius goisagi	VU	winter	1980	present	A1
Spot-billed Pelican Pelecanus philippensis	NT	non-breeding	1900-1919	present	A1
Philippine Eagle Pithecophaga jefferyi	CR	resident	1980-1989	present	A1
Southern Silvery Kingfisher Ceyx argentatus	NT	resident	1900-1919	present	A1, A2
A4iii Species group - waterbirds	n/a	non-breeding	1980	20,000 individuals	A4iii

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

Year	Protected Area	Designation	% overlap with IBA
1929	Lake Buluan	Game Refuge and Bird Sanctuary	2

Habitat1	Habitat detail	% of IBA
Forest		2
Wetlands (inland)		major (>10)
Artificial/Terrestrial		-

1. IUCN Habitat classification.

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