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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
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
Chestnut-bellied Malkoha Phaenicophaeus sumatranus	NT	resident (2004)	present	A3
Reddish Scops-owl Otus rufescens	NT	resident (2004)	present	A3
Barred Eagle-owl Bubo sumatranus	NT	resident (2004)	present	A3
Wallace's Hawk-eagle Nisaetus nanus	VU	resident (2004)	present	A3
Blyth's Hawk-eagle Nisaetus alboniger	LC	resident (2004)	present	A3
Red-bearded Bee-eater Nyctyornis amictus	LC	resident (2004)	present	A3
Red-throated Barbet Psilopogon mystacophanos	NT	resident (2004)	present	A3
Red-crowned Barbet Psilopogon rafflesii	NT	resident (2004)	present	A3
Gold-whiskered Barbet Psilopogon chrysopogon	LC	resident (2004)	present	A3
Rufous Piculet Sasia abnormis	LC	resident (2004)	present	A3
Maroon Woodpecker Blythipicus rubiginosus	LC	resident (2004)	present	A3
Banded Woodpecker Chrysophlegma miniaceum	LC	resident (2004)	present	A3
Black-thighed Falconet Microhierax fringillarius	LC	resident (2004)	present	A3
Blue-crowned Hanging-parrot Loriculus galgulus	LC	resident (2004)	present	A3
Black-and-red Broadbill Cymbirhynchus macrorhynchos	LC	resident (2004)	present	A3
Black-and-yellow Broadbill Eurylaimus ochromalus	NT	resident (2004)	present	A3
Oriolus xanthonotus	NR	resident (2004)	present	A3
Fiery Minivet Pericrocotus igneus	NT	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
Green Iora Aegithina viridissima	NT	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
Scaly-breasted Bulbul Ixidia squamata	NT	resident (2004)	present	A3
Spectacled Bulbul Ixidia erythropthalmos	LC	resident (2004)	present	A3
Red-eyed Bulbul Pycnonotus brunneus	LC	resident (2004)	present	A3
Olive-winged Bulbul Pycnonotus plumosus	LC	resident (2004)	present	A3
Puff-backed Bulbul Euptilotus eutilotus	NT	resident (2004)	present	A3
Chestnut-crested Yuhina Staphida everetti	LC	resident (2004)	present	A3
Pygmy White-eye Heleia squamifrons	LC	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
Rufous-crowned Babbler Malacopteron magnum	NT	resident (2004)	present	A3
Black-capped Babbler Pellorneum nigrocapitatum	LC	resident (2004)	present	A3
Malaysian Blue Flycatcher Cyornis turcosus	NT	resident (2004)	present	A3
Lesser Green Leafbird Chloropsis cyanopogon	NT	resident (2004)	present	A3
Yellow-breasted Flowerpecker Prionochilus maculatus	LC	resident (2004)	present	A3
Yellow-rumped Flowerpecker Prionochilus xanthopygius	LC	resident (2004)	present	A3
Spectacled Spiderhunter Arachnothera flavigaster	LC	resident (2004)	present	A3

Year	Protected Area	Designation (management category)	% coverage of IBA
-	Bau Limestone	Nature Reserve (-)	5

Habitat	% of IBA	Habitat detail
Artificial/Terrestrial	-
Forest	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Bau Limestone (Malaysia). Downloaded from https://datazone.birdlife.org/site/factsheet/bau-limestone-iba-malaysia on 23/12/2024.