email a friend
printable version
Location Philippines, Region XIII
Central coordinates 125o 43.00' East  9o 6.00' North
IBA criteria A1, A2
Area 16,225 ha
Altitude 200 - 1,837m
Year of IBA assessment 2001

Haribon Foundation



Site description Mt Hilong hilong lies on the boundaries of Agusan del Norte, Agusan del Sur and Surigao del Sur Provinces, in the northern portion of the Diwata range of north-east Mindanao. It is the highest mountain in the range, but several of the other peaks included in the IBA also reach well over 1,000 m. The IBA comprises a large block of forest that is shown on recent forest cover maps. Much of this forest is montane, but there are also likely to be some substantial areas of lowland forest. The Cabadbaran-Santiago Natural Park is located on flat to rolling land from 200-1,700 m. It includes c. 3,002 ha (58%) of residual forest, including a 120 ha rattan plantation established by the DENR, c. 1,682 ha (33%) of brushland with medium-sized trees and c.318 ha (6%) of grassland. Cultivated land covers c.163 ha (3%), and is planted with corn, root crops and fast-growing exotic tree species, such as yemane or gmelina Gmelina arborea. Cabadbaran-Santiago Natural Park was declared as a forest watershed reservation because it is the main source of water for the municipalities of Cabadbaran and Santiago. A 500 ha area has been set aside as ancestral domain.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Japanese Night-heron Gorsachius goisagi winter  2001  present  A1  Endangered 
Philippine Eagle Pithecophaga jefferyi resident  2001  present  A1  Critically Endangered 
Mindanao Bleeding-heart Gallicolumba crinigera resident  2001  present  A1  Vulnerable 
Mindanao Brown-dove Phapitreron brunneiceps resident  2001  present  A1  Vulnerable 
Philippine Cockatoo Cacatua haematuropygia resident  2001  present  A1  Critically Endangered 
Giant Scops-owl Otus gurneyi resident  2001  present  A1  Vulnerable 
Philippine Eagle-owl Bubo philippensis resident  2001  present  A1  Vulnerable 
Blue-capped Kingfisher Actenoides hombroni resident  2001  present  A1  Vulnerable 
Philippine Dwarf-kingfisher Ceyx melanurus resident  2001  present  A1  Vulnerable 
Silvery Kingfisher Alcedo argentata resident  2001  present  A1  Vulnerable 
Mindanao Broadbill Eurylaimus steerii resident  2001  present  A1  Vulnerable 
Azure-breasted Pitta Pitta steerii resident  2001  present  A1  Vulnerable 
Celestial Monarch Hypothymis coelestis resident  2001  present  A1  Vulnerable 
Little Slaty Flycatcher Ficedula basilanica resident  2001  present  A1  Vulnerable 
Philippine Leafbird Chloropsis flavipennis resident  2001  present  A1  Vulnerable 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Andanan River Watershed Forest Reserve 17,888 protected area overlaps with site 0  
Cabadbaran Watershed Forest Reserve 15,977 protected area overlaps with site 0  

Habitats

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

Other biodiversity The Pangulangan Caves harbour large populations of cave bats and swiftlets.

Protection status The proposed Cabadbaran-Santiago Natural Park lies within the Mt Hilong-hilong IBA. The area was declared as a forest watershed reservation by Presidential Proclamation No. 834, series of 1991.

Contribute  Please click here to help BirdLife conserve the world's birds - your data for this IBA and others are vital for helping protect the environment.

Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Mount Hilong-hilong. Downloaded from http://www.birdlife.org on 12/07/2014

To provide new information to update this factsheet or to correct any errors, please email BirdLife