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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.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List	Season (year/s of estimate)	Size	IBA criteria
Luzon Bleeding-heart Gallicolumba luzonica	NT	resident (1985)	present	A2
Spotted Imperial-pigeon Ducula carola	VU	resident (1990)	23 birds	A1
Flame-breasted Fruit-dove Ramphiculus marchei	VU	resident (1880–1900)	present	A1, A2
Rufous Coucal Centropus unirufus	NT	resident (1990–1999)	present	A2
Red-crested Malkoha Dasylophus superciliosus	LC	resident (1990–1999)	common	A2
Scale-feathered Malkoha Lepidogrammus cumingi	LC	resident (1990–1999)	present	A2
Spotted Buttonquail Turnix ocellatus	LC	resident (1990–1999)	present	A2
Luzon Buttonquail Turnix worcesteri	DD	resident (1969)	present	A2
Luzon Highland Scops-owl Otus longicornis	LC	resident (1969)	present	A2
Philippine Eagle-owl Bubo philippensis	VU	resident (1981–1999)	present	A1
North Philippine Hawk-eagle Nisaetus philippensis	EN	resident (1990)	present	A1
Luzon Hornbill Penelopides manillae	LC	resident (1990–1999)	present	A2
North Philippine Dwarf-kingfisher Ceyx melanurus	LC	resident (1992)	present	A1
Green Racquet-tail Prioniturus luconensis	EN	resident (1986–1990)	present	A1, A2
Whiskered Pitta Erythropitta kochi	LC	resident (1996)	present	A1, A2
White-lored Oriole Oriolus albiloris	LC	resident (1990–1999)	present	A2
Blackish Cicadabird Edolisoma coerulescens	LC	resident (1990–1999)	frequent	A2
Celestial Monarch Hypothymis coelestis	VU	resident (1990–1997)	present	A1, A2
White-fronted Tit Sittiparus semilarvatus	NT	resident (1990–1999)	present	A2
Grey-backed Tailorbird Orthotomus derbianus	LC	resident (1990–1999)	present	A2
Robsonius rabori	NR	resident (1990–1999)	common	A2
Luzon Striped Babbler Zosterornis striatus	LC	resident (1980–1989)	present	A2
Grand Rhabdornis Rhabdornis grandis	LC	resident (1990–1999)	present	A2
Ashy Thrush Geokichla cinerea	VU	resident (1990–1999)	frequent	A1, A2
Ashy-breasted Flycatcher Muscicapa randi	VU	resident (1988)	present	A1, A2
Furtive Flycatcher Ficedula disposita	LC	resident (1990–1999)	present	A2
Green-faced Parrotfinch Erythrura viridifacies	VU	resident (1983)	present	A1, A2

Year	Protected Area	Designation (management category)	% coverage of IBA
1968	Angat (Metro Water District)	Watershed Forest Reserve (VI)	100
1968	Angat	Watershed Forest Reserve (VI)	100

Habitat	% of IBA	Habitat detail
Forest	major (>10)
Artificial/Terrestrial	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Angat watershed (Philippines). Downloaded from https://datazone.birdlife.org/site/factsheet/angat-watershed-iba-philippines on 23/12/2024.