Pagbilao and Tayabas Bay

IBA Justification

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'):
Species Current IUCN Red List Category Season Year(s) Population estimate at site IBA criteria met
Philippine Duck Anas luzonica VU resident 1997 common A1, A4i
Rufous Night-heron Nycticorax caledonicus LC resident 1987 present A4i
Green-backed Heron Butorides striata LC resident 1987 common A4i
Chinese Egret Egretta eulophotes VU non-breeding 1980-1991 uncommon A1
Philippine Eagle Pithecophaga jefferyi CR resident 1926 present A1
North Philippine Dwarf-kingfisher Ceyx melanurus VU resident 1984-1994 present A1

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2001).


Habitat (IUCN level 1) Habitat detail Extent (% of site)
Artificial/Terrestrial -
Marine Coastal/Supratidal -
Marine Intertidal -
Wetlands (inland) -
Forest Mangrove forest (tropical) -
Artificial/Aquatic & Marine Other artificial wetlands -
For more information about the IUCN Habitat classification, please click here.

Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Pagbilao and Tayabas Bay. Downloaded from on 06/12/2023.