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Location Philippines, Region IVa,Region V
Central coordinates 122o 36.00' East  13o 45.00' North
IBA criteria A1, A4i
Area 10,000 ha
Year of IBA assessment 2001

Haribon Foundation

Site description Ragay Gulf lies between the Bicol and Bondoc Peninsulas, in Quezon and Camarines Sur Provinces, south-eastern Luzon. It is a protected gulf with an estuary in the northern part created by drainage from the mountains of the northern Bicol region (including Mt Labo: PH029). There are areas of largely intact mangrove along the coast, with intertidal mudflats, particularly in protected bays such as Peris Bay. The area supports some of the largest tracts of mangrove forest on Luzon, and there are some coral reefs offshore. Coconut plantations dominate the vegetation on the adjacent degraded hillsides. There are local fisheries in the vicinity of all of the mangrove areas, which are of considerable local importance. Mangroves are harvested for timber and other products, and mangrove forest has been converted to aquaculture ponds in Guinayangan and Buenavista. The principal land use in the adjacent uplands is agriculture, mainly the cultivation of coconuts and maize, but the soils in this region are poor. The mangrove forest provides a natural barrier against coastal erosion. The Gulf is important for scientific research, as it constitutes one of the few sites in Luzon with large areas of mangrove forest still in a healthy condition.

Key Biodiversity Ragay Gulf is an important area for migratory herons and shorebirds. Up to 5,000 shorebirds have been counted there, but the area may hold even more birds during the peak migration seasons. Significant numbers of the threatened Chinese Egret have been recorded, and Great Egret has occurred there in internationally important numbers.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Great White Egret Ardea alba unknown  2001  present  A4i  Least Concern 
Chinese Egret Egretta eulophotes non-breeding  2001  present  A1, A4i  Vulnerable 


IUCN habitat Habitat detail Extent (% of site)
Coastline   -
Artificial - terrestrial   -

Protection status Not officially protected.

References Custodio (1996); Davies et al. (1990); Scott (1989).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Ragay Gulf. Downloaded from on 28/10/2016

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