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Location South Africa, Western Cape
Central coordinates 20o 0.00' East  34o 43.00' South
IBA criteria A1, A4i
Area 9,000 ha
Altitude 0 - 20m
Year of IBA assessment 2001

BirdLife South Africa

Summary This complex wetland system is located at the southern tip of the African continent 25 km south of Bredasdorp and consists of the Nuwejaarsrivier and its associated marshes, Soetendalsvlei and the Heuningnes River and its estuary, the latter is located in De Mond Nature Reserve.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Kelp Gull Larus dominicanus breeding  300-450 breeding pairs  A4i  Least Concern 
Kelp Gull Larus dominicanus winter  700-1,000 individuals  A4i  Least Concern 
Damara Tern Sternula balaenarum breeding  common  A1  Near Threatened 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
De Mond Provincial Nature Reserve 927 protected area contained by site 1,580  
De Mond (Heuningnes estuary) Wetlands of International Importance (Ramsar) 918 protected area contained by site 918  


IUCN habitat Habitat detail Extent (% of site)
Wetlands (inland) Intertidal mud, sand or salt flats; Salt marshes; Sand dunes and beaches - riverine  -
Artificial - terrestrial   12%
Shrubland   62%
Forest   25%

Land use

Land-use Extent (% of site)
nature conservation and research 17%
other -
nature conservation and research 100%

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Heuningnes river and estuary system. Downloaded from on 25/10/2014

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