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The site was identified as important in 1998 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
Knysna Turaco Tauraco corythaix	LC	resident	1998	present	A2, A3
Cape Vulture Gyps coprotheres	VU	resident	-	present	A1
Knysna Woodpecker Campethera notata	NT	resident	1998	present	A1, A2
Grey Cuckooshrike Ceblepyris caesius	LC	resident	1998	present	A3
Olive Bushshrike Chlorophoneus olivaceus	LC	resident	1998	present	A3
Barratt's Warbler Bradypterus barratti	LC	resident	1998	present	A3
Yellow-throated Woodland-warbler Phylloscopus ruficapilla	LC	resident	1998	present	A3
Spotted Ground-thrush Geokichla guttata	VU	non-breeding	-	present	A1
Brown Scrub-robin Tychaedon signata	LC	resident	1998	present	A2
White-starred Robin Pogonocichla stellata	LC	resident	1998	present	A3
Chorister Robin-chat Cossypha dichroa	LC	resident	1998	present	A2, A3
Gurney's Sugarbird Promerops gurneyi	NT	resident	1998	present	A3
Swee Waxbill Coccopygia melanotis	LC	resident	1998	present	A3
Forest Canary Crithagra scotops	LC	resident	1998	present	A2, A3

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (1998) may differ.

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 1998. The most recent assessment (2013) is shown below.

State (condition of the trigger species' habitats)
Habitat	Quantity (% remaining)	Quality (% carrying capacity)	Result
Grassland	moderate (70-90%)	moderate (70-90%)	unfavourable
Shrubland	good (> 90%)	moderate (70-90%)	near favourable
Forest	good (> 90%)	moderate (70-90%)	near favourable

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Invasive and other problematic species and genes	happening now	some of area/population (10-49%)	moderate to rapid deterioration	high
Pollution	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Climate change and severe weather	likely in short term (within 4 years)	majority/most of area/population (50-90%)	slow but significant deterioration	medium
Transportation and service corridors	happening now	small area/few individuals (<10%)	moderate to rapid deterioration	low
Biological resource use	happening now	small area/few individuals (<10%)	slow but significant deterioration	low
Residential and commercial development	happening now	whole area/population (>90%)	no or imperceptible deterioration	low
Human intrusions and disturbance	happening now	whole area/population (>90%)	no or imperceptible deterioration	low
Natural system modifications	happening now	some of area/population (10-49%)	no or imperceptible deterioration	low

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Whole area of site (>90%) covered by appropriate conservation designation	A management plan exists but it is out of date or not comprehensive	Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity	medium

Year	Protected Area	Designation	% overlap with IBA
1950	Oribi Gorge Nature Reserve	Nature Reserve	100

Habitat1	Habitat detail	% of IBA
Forest	Woodland - mixed	-
Grassland		-
Shrubland		-

1. IUCN Habitat classification.

Land use	% of IBA
nature conservation and research	100
agriculture	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Oribi Gorge Nature Reserve (South Africa). Downloaded from https://datazone.birdlife.org/site/factsheet/oribi-gorge-nature-reserve-iba-south-africa on 23/11/2024.