| Ducks of the World : 16 July 2001 | |
| SG 4131 : D2 | SG 4132 : D3 |
| Blue-winged Teal Not a South African Bird Clements |
Red-crested Pochard Not a South African Bird Clements |
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| SG 4133 : D3 | SG4134 : D4 |
| Wood Duck Not a South African Bird Clements |
Mallard Roberts 923 Clements |
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| SG 4135 : D4 | SG 4136 : D5 |
| Falcated Duck Not a South African Bird Clements |
Barrow's Goldeneye Not a South African Bird Clements |
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| SG 4137 : D5 | SG 4138 : D10 |
| Mandarin Duck Not a South African Bird Clements |
Bufflehead Not a South African Bird Clements |
| SG 4139 : D10 | SG 4140 : D12 |
| King Eider Not a South African Bird Clements |
Hooded Merganser Not a South African Bird Clements |
| Ducks of the World : 16 July 2001 | |
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| SG 4142 MS : 6 stamps x D7 | |
| Black Scoter Not a South African Bird Clements 27.1370 |
American Black Duck Not a South African Bird Clements 27.0910 |
| Eurasian Teal Not a South African Bird Clements 27.0760 |
Bufflehead Not a South African Bird Clements 27.1420 |
| Red-breasted Merganser Not a South African Bird Clements 27.1460 |
Fulvous Duck Roberts 100 Clements 27.0040 |