The site was identified as internationally important for bird conservation in 2001 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.
| Species |
Red List |
Season (year/s of estimate) |
Size |
IBA criteria |
| Philippine Duck Anas luzonica |
VU |
resident (1970–1979) |
uncommon |
A1 |
| Negros Bleeding-heart Gallicolumba keayi |
CR |
resident (1970–1979) |
present |
A1, A2 |
| Spotted Imperial-pigeon Ducula carola |
VU |
resident (1960–1969) |
present |
A1 |
| Philippine Spinetail Mearnsia picina |
NT |
resident (1990–1999) |
present |
A2 |
| Japanese Night Heron Gorsachius goisagi |
VU |
winter (1970–1979) |
present |
A1 |
| Rufous-headed Hornbill Rhabdotorrhinus waldeni |
CR |
resident (1990–1999) |
20–30 birds |
A1, A2 |
| Visayan Hornbill Penelopides panini |
EN |
resident (1990–1999) |
frequent |
A1, A2 |
| Rufous-lored Kingfisher Todiramphus winchelli |
VU |
resident (1970–1979) |
present |
A1 |
| Philippine Cockatoo Cacatua haematuropygia |
CR |
resident (1990–1999) |
present |
A1 |
| White-winged Cicadabird Edolisoma ostentum |
VU |
resident (1990–1999) |
present |
A1, A2 |
| Celestial Monarch Hypothymis coelestis |
VU |
resident (1970–1979) |
present |
A1, A2 |
| Streaked Reed-warbler Acrocephalus sorghophilus |
CR |
winter (1950–1959) |
present |
A1 |
| Flame-templed Babbler Dasycrotapha speciosa |
EN |
resident (1990–1999) |
common |
A1, A2 |
| Negros Striped Babbler Zosterornis nigrorum |
EN |
resident (1987–1994) |
common |
A1, A2 |
| Ashy-breasted Flycatcher Muscicapa randi |
VU |
resident (1992) |
present |
A1, A2 |
| White-throated Jungle-flycatcher Vauriella albigularis |
EN |
resident (1960–1969) |
present |
A1, A2 |
| Black-belted Flowerpecker Dicaeum haematostictum |
LC |
resident (1990–1999) |
abundant |
A1, A2 |
