• Summary
• Text account
• Data table and detailed info
• Map
• Reference and further resources

The site was identified as important in 2007 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 List1	Season	Year(s)	Size	IBA criteria
Kagu Rhynochetos jubatus	EN	resident	2002	present	A1, A2
New Caledonian Imperial-pigeon Ducula goliath	NT	resident	2002	present	A2
Cloven-feathered Dove Drepanoptila holosericea	LC	resident	2002	present	A2
New Caledonian Owlet-nightjar Aegotheles savesi	CR	resident	1998	present	A1, A2
White-winged Petrel Pterodroma leucoptera	VU	breeding	2002	4,000-8,000 breeding pairs	A1, A4ii
White-bellied Goshawk Accipiter haplochrous	NT	resident	2002	present	A2
Horned Parakeet Eunymphicus cornutus	VU	resident	2002	present	A2
Red-fronted Parakeet Cyanoramphus novaezelandiae	LC	resident	2002	present	A1, A2
Grey-eared Honeyeater Lichmera incana	LC	resident	2002	present	A2
Crow Honeyeater Gymnomyza aubryana	CR	resident	2002	present	A1, A2
New Caledonian Friarbird Philemon diemenensis	LC	resident	2002	present	A2
New Caledonian Myzomela Myzomela caledonica	LC	resident	2002	present	A2
Barred Honeyeater Gliciphila undulata	LC	resident	2002	present	A2
Fan-tailed Gerygone Gerygone flavolateralis	LC	resident	2002	present	A2
New Caledonian Whistler Pachycephala caledonica	LC	resident	2002	present	A2
South Melanesian Cuckooshrike Coracina caledonica	LC	resident	2002	present	A2
New Caledonian Cicadabird Edolisoma anale	NT	resident	2002	present	A2
Long-tailed Triller Lalage leucopyga	LC	resident	2002	present	A2
New Caledonia Streaked Fantail Rhipidura verreauxi	LC	resident	2002	present	A2
Melanesian Flycatcher Myiagra caledonica	LC	resident	2002	present	A2
Southern Shrikebill Clytorhynchus pachycephaloides	LC	resident	2002	present	A2
New Caledonian Crow Corvus moneduloides	LC	resident	2002	present	A2
Yellow-bellied Robin Cryptomicroeca flaviventris	LC	resident	2002	present	A2
New Caledonian Thicketbird Cincloramphus mariae	LC	resident	2002	present	A2
Green-backed White-eye Zosterops xanthochroa	LC	resident	2002	present	A2
Striated Starling Aplonis striata	LC	resident	2002	present	A2
Red-throated Parrotfinch Erythrura psittacea	LC	resident	2002	present	A2

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2007) may differ.

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2007. The most recent assessment (2013) is shown below.

State (condition of the trigger species' populations)
Species	Reference	Actual	Units	% remaining	Result
Kagu Rhynochetos jubatus	200	1,000	individuals	100	favourable
White-winged Petrel Pterodroma leucoptera	10,000	2,000	individuals	20	very unfavourable
Crow Honeyeater Gymnomyza aubryana	300	150	breeding pairs	50	unfavourable

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Energy production and mining	happening now	some of area/population (10-49%)	very rapid to severe deterioration	high
Natural system modifications	happening now	some of area/population (10-49%)	very rapid to severe deterioration	high
Invasive and other problematic species and genes	happening now	whole area/population (>90%)	slow but significant deterioration	high
Biological resource use	happening now	some of area/population (10-49%)	slow but significant deterioration	medium

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Some of site covered (10-49%)	Unknown	Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity	low

Year	Protected Area	Designation	% overlap with IBA
1950	Montagne des Sources	Strict Nature Reserve	8
1950	Mont Humboldt	Special Botanical Reserve	2
1960	Reserve Speciale de Faune de la Haute Yate	Special Fauna Reserve	2
1980	Parc Territorial de la Riviere Bleue	Territorial Park	12
1980	Provincial de Thy	Territorial Park	2
2014	Les Lacs du Grand Sud Neo-Caledonien	Ramsar Site, Wetland of International Importance	20

Habitat1	Habitat detail	% of IBA
Forest		major (>10)

1. IUCN Habitat classification.

---

Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Massifs du Grand Sud - entre le mont Humboldt et la rivière Bleue (New Caledonia (to France)). Downloaded from https://datazone.birdlife.org/site/factsheet/massifs-du-grand-sud--entre-le-mont-humboldt-et-la-rivière-bleue-iba-new-caledonia-(to-france) on 25/11/2024.