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The site was identified as internationally important for bird conservation in 2006 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
Shy Ground Dove Pampusana stairi	LC	resident (2005)	uncommon	A1, A2
Barking Imperial-pigeon Ducula latrans	LC	resident (2005)	abundant	A2
Golden Dove Chrysoena luteovirens	LC	resident (2005)	abundant	A2
Many-coloured Fruit-dove Ptilinopus perousii	LC	resident (2005)	frequent	A2
Fiji Goshawk Accipiter rufitorques	LC	resident (2005)	rare	A2
Masked Shining-parrot Prosopeia personata	NT	resident (2005)	uncommon	A1, A2
Red-throated Lorikeet Charmosyna amabilis	CR	resident (1993)	rare	A1, A2
Collared Lory Phigys solitarius	LC	resident (2005)	common	A2
Giant Honeyeater Gymnomyza brunneirostris	LC	resident (2005)	abundant	A2
Kikau Foulehaio procerior	LC	resident (2005)	abundant	A2
Sulphur-breasted Myzomela Myzomela jugularis	LC	resident (2005)	abundant	A2
Polynesian Triller Lalage maculosa	LC	resident (2005)	abundant	A2
Fiji Woodswallow Artamus mentalis	LC	resident (2005)	common	A2
Fiji Streaked Fantail Rhipidura layardi	LC	resident (2005)	common	A2
Vanikoro Flycatcher Myiagra vanikorensis	LC	resident (2005)	common	A2
Chestnut-throated Flycatcher Myiagra castaneigularis	LC	resident (2005)	rare	A2
Slaty Monarch Mayrornis lessoni	LC	resident (2005)	rare	A2
Fiji Shrikebill Clytorhynchus vitiensis	LC	resident (2005)	frequent	A2
Black-throated Shrikebill Clytorhynchus nigrogularis	NT	resident (2005)	uncommon	A1, A2
Long-legged Thicketbird Cincloramphus rufus	EN	resident (2005)	2 pairs	A1, A2
Fiji Bush-warbler Horornis ruficapilla	LC	resident (2005)	abundant	A2
Fiji White-eye Zosterops explorator	LC	resident (2005)	abundant	A2
Polynesian Starling Aplonis tabuensis	LC	resident (2005)	abundant	A2
Fiji Parrotfinch Erythrura pealii	LC	resident (2005)	abundant	A2
Pink-billed Parrotfinch Erythrura kleinschmidti	VU	resident (2005)	uncommon	A1, A2

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2006. The most recent assessment (2018) is shown below.

State (condition of the trigger species' habitats)
Habitat	Quantity (% remaining)	Quality (% carrying capacity)	Result
Forest	-	moderate (70–90%)	moderate

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Invasive and other problematic species and genes	happe­ning now	whole of popul­ation/area (>90%)	slow decline (1–10% over 3 gener­ations)	high
Energy production and mining	happe­ning now	few indivi­duals/small area (<10%)	moderate decline (10–30% over 3 gener­ations)	low
Human intrusions and disturbance	happe­ning now	few indivi­duals/small area (<10%)	slow decline (1–10% over 3 gener­ations)	low

Response (conservation actions taken for the trigger species and/or their habitats)
Designation	Planning	Action	Result
Little/none of area covered (<10%)	No management planning has taken place	Very little or no conservation action taking place	very low

Year	Protected Area	Designation (management category)	% coverage of IBA
-	Nadrau Plateau	Nature Reserve (-)	-
-	Monasavu Catchment	Other (-)	-
2004	Monasavu Catchment	Water Dam (VI)	2

Habitat	% of IBA	Habitat detail
Forest	major (>10)
Artificial/Aquatic & Marine	-

Land use	% of IBA
water management	-
forestry	-
agriculture	-

The forested watershed is owned by local land-owners but is not leased or managed by FEA, even though the FEA relies on the catchment for an uninterrupted supply of water for its hydropower. The land tenure is mostly Native Lands except for three Crown Lands totalling about 1,490 ha.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Rairaimatuku Highlands (Fiji). Downloaded from https://datazone.birdlife.org/site/factsheet/rairaimatuku-highlands-iba-fiji on 22/12/2024.