The Coordinated Waterbird Counts (CWAC) collects abundance data
for waterbird species at 688 wetland sites across South Africa.
Since 1992, counts have been done twice a year, in summer and
winter, providing good long term records. The data are able to
reveal trends in waterbird numbers at different sites. When
viewing this with ancillary data, such as catchment area and
management information, you can gain a comprehensive
understanding of these crucial habitats and the trends affecting
their health.
Vital statistics
Total number of citizen science visits (CWAC sites)
Number of species in last year
List of threatened species detected in last year
Waterbird Conservation Value in last year (WCV)
Site level categories
Category
Range
Description
1
0-10
Low index - site may support threshold populations for a few
species; conservation value is low
2
11-24
Medium index - site supports important threshold populations
for some species; conservation value is medium
3
25-49
High index - site supports important threshold populations
for numerous species; conservation value is high
4
50+
Very high index - site supports significant threshold
populations for numerous species; conservation value is
significant
Site description
To view this site with bird indicators and ancillary data, open the Exploration Map >>
Wetland information
Bird information
For plots and tables showing changes in bird abundance at this site, open the Species page >>
Species Trends - Table
Summary
Species level
Species level categories
Category
Range
Description
1a
<0.5
Species abundance does not meet 1% threshold; population has
low conservation value
1b
0.5-0.99
Species abundance does not meet 1% threshold but meets or
surpasses sub-regional IBA level (0.5%); population has
low-medium conservation value
2
1.0 - 2.99
Species abundance meets threshold or surpasses it by no more
than three times; population has medium conservation value
3
3.0 - 4.99
Species abundance surpasses threshold three times but no
more than five times; population has medium-high
conservation value
4
5.0 - 9.99
Species abundance surpasses threshold five times or more but
not more than 10 times; population has very high
conservation value
5
≥10.0
Species abundance greatly surpasses threshold ten times or
more; population has priority conservation value
