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Location South Africa, Eastern Cape
Central coordinates 28o 37.00' East  32o 0.00' South
IBA criteria A1, A4ii
Area 2,000 ha
Altitude 280 - 625m
Year of IBA assessment 2001

BirdLife South Africa



Summary Collywobbles is an ancestral vulture colony occurring along the cliffs of the convoluted gorge formed by the meandering Nbashe River in the Idutywa District. The number of Cape Vultures Gyps coprotheres at Collywobbles has fluctuated dramatically over the last 35 years but a total of 130 – 140 pairs were recorded during the 2011 breeding season.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Cape Vulture Gyps coprotheres resident  60-90 breeding pairs  A1, A4ii  Vulnerable 
Cape Vulture Gyps coprotheres winter  150-250 individuals  A4ii  Vulnerable 

IBA Monitoring

2011 high not assessed negligible
unset
Good - based on reliable and complete / representative data

Climate change and severe weather storms and floods likely in long term (beyond 4 years) some of area/population (10-49%) slow but significant deterioration medium
Over-exploitation, persecution and control of species direct mortality of trigger species - hunting and trapping likely in long term (beyond 4 years) some of area/population (10-49%) slow but significant deterioration medium
Over-exploitation, persecution and control of species direct mortality of trigger species - persecution/control likely in long term (beyond 4 years) some of area/population (10-49%) slow but significant deterioration medium
Residential and commercial development commercial and industrial development likely in short term (within 4 years) some of area/population (10-49%) slow but significant deterioration medium
Residential and commercial development housing and urban areas likely in short term (within 4 years) some of area/population (10-49%) slow but significant deterioration medium
Transportation and service corridors roads and railroads happening now some of area/population (10-49%) moderate to rapid deterioration high
Transportation and service corridors utility & service lines happening now some of area/population (10-49%) slow but significant deterioration medium

Rocky areas Inselbergs, kopjes & inland cliffs  0 0 good (> 90%) good (> 90%) favourable

Gyps coprotheres Cape Vulture 90 135 breeding pairs 100 favourable

Little/none of site covered (<10%)  No management planning has taken place  Very little or no conservation action taking place  negligible 

Habitats

IUCN habitat Habitat detail Extent (% of site)
Unknown   -
Forest   100%
Rocky areas Inselbergs, kopjes & inland cliffs  -

Land use

Land-use Extent (% of site)
unknown -
nature conservation and research 100%
tourism/recreation -

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Collywobbles Vulture Colony. Downloaded from http://www.birdlife.org on 27/11/2014

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