PH113
Basilan Natural Biotic Area


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 Red List Category Season Year(s) Population estimate at site IBA criteria met
Mindanao Bleeding-heart Gallicolumba crinigera VU resident 1900-1919 common A1, A2
Dark-eared Brown-dove Phapitreron brunneiceps VU resident 1937 present A1, A2
Chinese Egret Egretta eulophotes VU non-breeding 1900-1919 present A1
South Philippine Hawk-eagle Nisaetus pinskeri EN resident 1900-1919 present A1
Mindanao Hornbill Penelopides affinis LC resident 1900-1949 present A2
South Philippine Dwarf-Kingfisher Ceyx mindanensis VU resident 1979 present A1
Southern Silvery Kingfisher Ceyx argentatus NT resident 1926 present A1, A2
Rufous-lored Kingfisher Todiramphus winchelli VU resident 1937 present A1
Philippine Cockatoo Cacatua haematuropygia CR resident 1920-1929 present A1
Mindanao Wattled Broadbill Sarcophanops steerii VU resident 1937 present A1, A2
Celestial Monarch Hypothymis coelestis VU resident 1937 abundant A1, A2
White-eared Tailorbird Orthotomus cinereiceps LC resident 1937 present A2
Zamboanga Bulbul Hypsipetes rufigularis NT resident 1937 present A2
Rusty-crowned Babbler Sterrhoptilus capitalis LC resident 1900-1930 present A2
Striated Wren-babbler Ptilocichla mindanensis LC resident 1900-1930 present A2
Little Slaty Flycatcher Ficedula basilanica VU resident 1880-1900 present A1, A2

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


IBA Protection

Protected area (PA) PA designation PA area (ha) Relationship of PA with IBA Overlap of PA with IBA (ha)
Basilan Buffer Zone Natural Biotic Area - Buffer Zone 2,037 protected area contained by site 0
Basilan Natural Biotic Area 4,490 protected area contained by site 4,363

Habitats

Habitat (IUCN level 1) Habitat detail Extent (% of site)
Artificial/Terrestrial -
Forest -
For more information about the IUCN Habitat classification, please click here.


Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Basilan Natural Biotic Area. Downloaded from https://datazone.birdlife.org/site/factsheet/basilan-natural-biotic-area-iba-philippines on 19/03/2024.