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The site was identified as internationally important for bird conservation in 2004 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
Sabah Partridge Tropicoperdix graydoni	NT	resident (2000)	present	A3
Crimson-headed Partridge Haematortyx sanguiniceps	LC	resident (2004)	present	A2, A3
Great Argus Argusianus argus	VU	resident (2000)	present	A3
Bulwer's Pheasant Lophura bulweri	VU	resident (1988)	present	A1, A3
Bornean Crested Fireback Lophura ignita	VU	resident (2000)	present	A3
Large Green-pigeon Treron capellei	VU	resident (2001)	uncommon	A1, A3
Malay Eared-nightjar Lyncornis temminckii	LC	resident (2004)	present	A3
Silver-rumped Spinetail Rhaphidura leucopygialis	LC	resident (2004)	present	A3
Raffles's Malkoha Rhinortha chlorophaea	LC	resident (2004)	present	A3
Red-billed Malkoha Zanclostomus javanicus	LC	resident (2004)	present	A3
Black-bellied Malkoha Phaenicophaeus diardi	NT	resident (2004)	present	A3
Chestnut-bellied Malkoha Phaenicophaeus sumatranus	NT	resident (2004)	present	A3
Moustached Hawk-Cuckoo Hierococcyx vagans	NT	resident (2004)	present	A3
Wallace's Hawk-eagle Nisaetus nanus	VU	resident (1999–2002)	present	A1, A3
Blyth's Hawk-eagle Nisaetus alboniger	LC	resident (2004)	present	A3
Cinnamon-rumped Trogon Harpactes orrhophaeus	VU	resident (2004)	present	A3
Scarlet-rumped Trogon Harpactes duvaucelii	NT	resident (2004)	present	A3
Diard's Trogon Harpactes diardii	NT	resident (2004)	present	A3
Whitehead's Trogon Harpactes whiteheadi	LC	resident (2004)	present	A2, A3
Red-naped Trogon Harpactes kasumba	NT	resident (2004)	present	A3
White-crowned Hornbill Berenicornis comatus	EN	resident (2004)	present	A3
Rhinoceros Hornbill Buceros rhinoceros	VU	resident (2004)	present	A3
Bushy-crested Hornbill Anorrhinus galeritus	NT	resident (2004)	present	A3
Black Hornbill Anthracoceros malayanus	VU	resident (2004)	present	A3
Wrinkled Hornbill Rhabdotorrhinus corrugatus	EN	resident (2004)	present	A3
Red-bearded Bee-eater Nyctyornis amictus	LC	resident (2004)	present	A3
Malay Blue-banded Kingfisher Alcedo peninsulae	NT	resident (1988–1996)	present	A1, A3
Rufous-collared Kingfisher Actenoides concretus	NT	resident (2004)	present	A3
Bornean Barbet Psilopogon eximius	LC	resident (2004)	present	A2, A3
Red-throated Barbet Psilopogon mystacophanos	NT	resident (2004)	present	A3
Red-crowned Barbet Psilopogon rafflesii	NT	resident (2004)	present	A3
Yellow-crowned Barbet Psilopogon henricii	NT	resident (2004)	present	A3
Golden-naped Barbet Psilopogon pulcherrimus	LC	resident (2004)	present	A2, A3
Gold-whiskered Barbet Psilopogon chrysopogon	LC	resident (2004)	present	A3
Mountain Barbet Psilopogon monticola	LC	resident (2004)	present	A2, A3
Bornean Brown Barbet Caloramphus fuliginosus	LC	resident (2000)	present	A3
Malaysian Honeyguide Indicator archipelagicus	NT	resident (2004)	present	A3
Rufous Piculet Sasia abnormis	LC	resident (2004)	present	A3
Grey-and-buff Woodpecker Hemicircus sordidus	LC	resident (2000)	present	A3
Maroon Woodpecker Blythipicus rubiginosus	LC	resident (2004)	present	A3
Orange-backed Woodpecker Chrysocolaptes validus	LC	resident (2004)	present	A3
Olive-backed Woodpecker Chloropicoides rafflesii	NT	resident (2004)	present	A3
Buff-necked Woodpecker Meiglyptes tukki	NT	resident (2004)	present	A3
Buff-rumped Woodpecker Meiglyptes grammithorax	LC	resident (2000)	present	A3
Crimson-winged Woodpecker Picus puniceus	LC	resident (2004)	present	A3
Chequer-throated Yellownape Chrysophlegma humii	NT	resident (2000)	present	A3
White-fronted Falconet Microhierax latifrons	NT	resident (2004)	present	A2, A3
Blue-crowned Hanging-parrot Loriculus galgulus	LC	resident (2004)	present	A3
Blue-rumped Parrot Psittinus cyanurus	NT	resident (2000)	present	A3
Blue-banded Pitta Erythropitta arquata	LC	resident (2004)	present	A3
Giant Pitta Hydrornis caeruleus	NT	resident (2004)	present	A3
Blue-headed Pitta Hydrornis baudii	VU	resident (1988–1996)	present	A1, A3
Bornean Banded Pitta Hydrornis schwaneri	LC	resident (2000)	present	A3
Black-and-red Broadbill Cymbirhynchus macrorhynchos	LC	resident (2004)	present	A3
Black-and-yellow Broadbill Eurylaimus ochromalus	NT	resident (2004)	present	A3
Green Broadbill Calyptomena viridis	NT	resident (2004)	present	A3
Oriolus xanthonotus	NR	resident (2004)	present	A3
Bornean Whistler Pachycephala hypoxantha	LC	resident (2004)	present	A2, A3
Fiery Minivet Pericrocotus igneus	NT	resident (2004)	present	A3
Sunda Cuckooshrike Coracina larvata	LC	resident (2004)	present	A3
Lesser Cuckooshrike Lalage fimbriata	LC	resident (2004)	present	A3
Black-winged Flycatcher-shrike Hemipus hirundinaceus	LC	resident (2004)	present	A3
Rufous-winged Philentoma Philentoma pyrhoptera	LC	resident (2004)	present	A3
Maroon-breasted Philentoma Philentoma velata	NT	resident (2004)	present	A3
Green Iora Aegithina viridissima	NT	resident (2004)	present	A3
Bornean Bristlehead Pityriasis gymnocephala	VU	resident (2004)	present	A3
Spotted Fantail Rhipidura perlata	LC	resident (2004)	present	A3
Crested Jayshrike Platylophus galericulatus	NT	resident (2004)	present	A3
Bornean Black Magpie Platysmurus aterrimus	LC	resident (2004)	present	A3
Hairy-backed Bulbul Tricholestes criniger	LC	resident (2004)	present	A3
Yellow-bellied Bulbul Alophoixus phaeocephalus	LC	resident (2004)	present	A3
Chestnut-vented Bulbul Alophoixus ruficrissus	LC	resident (2004)	present	A3
Grey-cheeked Bulbul Alophoixus tephrogenys	VU	resident (2004)	present	A3
Finsch's Bulbul Iole finschii	NT	resident (2004)	present	A3
Buff-vented Bulbul Iole charlottae	NT	resident (2004)	present	A3
Streaked Bulbul Ixos malaccensis	NT	resident (2004)	present	A3
Scaly-breasted Bulbul Ixidia squamata	NT	resident (2004)	present	A3
Grey-bellied Bulbul Ixidia cyaniventris	NT	resident (2004)	present	A3
Spectacled Bulbul Ixidia erythropthalmos	LC	resident (2004)	present	A3
Red-eyed Bulbul Pycnonotus brunneus	LC	resident (2004)	present	A3
Cream-vented Bulbul Pycnonotus simplex	LC	resident (2004)	present	A3
Puff-backed Bulbul Euptilotus eutilotus	NT	resident (2004)	present	A3
Black-and-white Bulbul Microtarsus melanoleucos	NT	resident (2004)	present	A3
Bornean Stubtail Urosphena whiteheadi	LC	resident (2004)	present	A2, A3
Chestnut-crested Yuhina Staphida everetti	LC	resident (2004)	present	A2, A3
Pygmy White-eye Heleia squamifrons	LC	resident (2004)	present	A2, A3
Black-capped White-eye Zosterops atricapilla	LC	resident (2004)	present	A2, A3
Black Babbler Melanocichla lugubris	LC	resident (2004)	present	A3
Pomatorhinus montanus	NR	resident (2004)	present	A3
Black-throated Babbler Stachyris nigricollis	NT	resident (2004)	present	A3
Chestnut-rumped Babbler Stachyris maculata	NT	resident (2004)	present	A3
Grey-headed Babbler Stachyris poliocephala	LC	resident (2004)	present	A3
Fluffy-backed Tit-babbler Macronus ptilosus	NT	resident (2004)	present	A3
Grey-hooded Babbler Cyanoderma bicolor	LC	resident (2004)	present	A3
Sooty-capped Babbler Malacopteron affine	NT	resident (2004)	present	A3
Rufous-crowned Babbler Malacopteron magnum	NT	resident (2004)	present	A3
Moustached Babbler Malacopteron magnirostre	LC	resident (2004)	present	A3
Short-tailed Babbler Pellorneum malaccense	NT	resident (2004)	present	A3
Ferruginous Babbler Pellorneum bicolor	LC	resident (2004)	present	A3
White-chested Babbler Pellorneum rostratum	NT	resident (2004)	present	A3
Temminck's Babbler Pellorneum pyrrogenys	LC	resident (2004)	present	A3
Black-capped Babbler Pellorneum nigrocapitatum	LC	resident (2004)	present	A3
Striped Wren-babbler Kenopia striata	NT	resident (2004)	present	A3
Horsfield's Babbler Malacocincla sepiaria	LC	resident (2004)	present	A3
Black-throated Wren-babbler Turdinus atrigularis	NT	resident (2004)	present	A3
Brown Fulvetta Alcippe brunneicauda	NT	resident (2004)	present	A3
Sunda Laughingthrush Garrulax palliatus	NT	resident (2004)	present	A2, A3
Chestnut-hooded Laughingthrush Pterorhinus treacheri	LC	resident (2004)	present	A3
Chestnut-capped Thrush Geokichla interpres	EN	resident (2000)	present	A3
Rufous-tailed Shama Copsychus pyrropygus	NT	resident (2004)	present	A3
Eumyias ruficrissa	NR	resident (2004)	present	A3
Grey-chested Jungle-flycatcher Cyornis umbratilis	NT	resident (2004)	present	A3
Large-billed Blue Flycatcher Cyornis caerulatus	VU	resident (1988–2001)	uncommon	A1, A3
Bornean Blue Flycatcher Cyornis superbus	LC	resident (2004)	present	A3
Malaysian Blue Flycatcher Cyornis turcosus	NT	resident (2004)	present	A3
Chestnut-naped Forktail Enicurus ruficapillus	NT	resident (2004)	present	A3
Rufous-chested Flycatcher Ficedula dumetoria	LC	resident (2004)	present	A3
Greater Green Leafbird Chloropsis sonnerati	EN	resident (2004)	present	A3
Lesser Green Leafbird Chloropsis cyanopogon	NT	resident (2004)	present	A3
Yellow-breasted Flowerpecker Prionochilus maculatus	LC	resident (2004)	present	A3
Scarlet-breasted Flowerpecker Prionochilus thoracicus	NT	resident (2004)	present	A3
Yellow-rumped Flowerpecker Prionochilus xanthopygius	LC	resident (2004)	present	A3
Black-sided Flowerpecker Dicaeum monticolum	LC	resident (2004)	present	A2, A3
Thick-billed Spiderhunter Arachnothera crassirostris	LC	resident (2004)	present	A3
Long-billed Spiderhunter Arachnothera robusta	LC	resident (2004)	present	A3
Yellow-eared Spiderhunter Arachnothera chrysogenys	LC	resident (2004)	present	A3
Spectacled Spiderhunter Arachnothera flavigaster	LC	resident (2004)	present	A3
Streaky-breasted Spiderhunter Arachnothera affinis	LC	resident (2004)	present	A3
Plain Sunbird Anthreptes simplex	LC	resident (2004)	present	A3
Red-throated Sunbird Anthreptes rhodolaemus	NT	resident (2004)	present	A3
Temminck's Sunbird Aethopyga temminckii	LC	resident (2004)	present	A3

Year	Protected Area	Designation (management category)	% coverage of IBA
1983	Maliau Basin	Protection Forest Reserve (Ia)	66
2003	Nurod-Urod	Virgin Jungle Reserve (Ia)	-

Habitat	% of IBA	Habitat detail
Forest	-

Land use	% of IBA
water management	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Maliau Basin Conservation Area (Malaysia). Downloaded from https://datazone.birdlife.org/site/factsheet/maliau-basin-conservation-area-iba-malaysia on 22/12/2024.