Knellpoort Dam (29462653) | |
|---|---|
Free State | |
| CWAC status | REGISTERED-COUNTED REGULARLY |
| Authority | Free State Department of Tourism, Environmental and Economic Affairs |
| Management status | STATE IMPOUNDMENT |
| Conservation status | UNKNOWN |
| IBA information | |
| Ramsar information | |
| Heritage information | |
| View Cards | No |
Information |
|---|
| Date_registered |
| 1992-02-05 |
| Brief_description |
| A large state dam on the Rietspruit River. Spurwinged Goose is common in winter, when the highest numbers of Egyptian Goose are also recorded. Moderate numbers of South African Shelduck occur in summer, while Threebanded Plover is more numerous in winter. Six years of counts show some decline in the number of species recorded, especially in winter, and notable summer and winter declines in total count and biomass figures. A nationally significant count of Yellowbilled Duck was recorded in summer 1992, when 127 Darter were also present, but from 1993, summer counts of these species, winter counts of Dabchick, and all counts of Redknobbed Coot, have been very low. Mild threats are posed by power boats, pollution and overhead powerlines. |
| Spp | Common name | Taxonomic name | Min | Avg | Max | IBA | Subregional IBA | RAMSAR |
|---|---|---|---|---|---|---|---|---|
| 256 | Calidris pugnax | 1 | 45.90 | 187 | ||||
| 67 | Bittern, Little | Ixobrychus minutus | 224 | 224.00 | 224 | |||
| 212 | Coot, Red-knobbed | Fulica cristata | 1 | 577.59 | 5019 | 5000 | 2500 | |
| 50 | Cormorant, Reed | Microcarbo africanus | 1 | 23.97 | 266 | |||
| 47 | Cormorant, White-breasted | Phalacrocorax lucidus | 1 | 26.69 | 258 | 130 | ||
| 216 | Crane, Blue | Grus paradisea | 2 | 2.00 | 2 | |||
| 52 | Darter, African | Anhinga rufa | 2 | 25.61 | 127 | |||
| 95 | Duck, African Black | Anas sparsa | 1 | 3.00 | 16 | |||
| 10003 | Duck, Muscovy | Cairina moschata | 4 | 4.00 | 4 | |||
| 100 | Duck, White-faced Whistling | Dendrocygna viduata | 3 | 8.50 | 13 | |||
| 96 | Duck, Yellow-billed | Anas undulata | 1 | 94.34 | 1087 | 850 | 1000 | |
| 58 | Egret, Great | Ardea alba | 2 | 2.67 | 3 | |||
| 60 | Egret, Intermediate | Ardea intermedia | 1 | 1.00 | 1 | |||
| 59 | Egret, Little | Egretta garzetta | 1 | 17.38 | 137 | |||
| 61 | Egret, Western Cattle | Bubulcus ibis | 1 | 39.45 | 209 | |||
| 149 | Fish Eagle, African | Haliaeetus vocifer | 1 | 1.90 | 4 | |||
| 86 | Flamingo, Greater | Phoenicopterus roseus | 2 | 4.00 | 6 | |||
| 89 | Goose, Egyptian | Alopochen aegyptiaca | 2 | 389.04 | 1522 | |||
| 88 | Goose, Spur-winged | Plectropterus gambensis | 2 | 72.72 | 334 | |||
| 5 | Grebe, Black-necked | Podiceps nigricollis | 2 | 2.00 | 2 | |||
| 4 | Grebe, Great Crested | Podiceps cristatus | 1 | 6.33 | 26 | 25 | ||
| 6 | Grebe, Little | Tachybaptus ruficollis | 1 | 17.16 | 129 | |||
| 263 | Greenshank, Common | Tringa nebularia | 1 | 4.33 | 15 | |||
| 288 | Gull, Grey-headed | Chroicocephalus cirrocephalus | 1 | 49.25 | 190 | |||
| 169 | Harrier, Black | Circus maurus | 1 | 1.00 | 1 | |||
| 64 | Heron, Black | Egretta ardesiaca | 1 | 1.00 | 1 | |||
| 55 | Heron, Black-headed | Ardea melanocephala | 1 | 2.67 | 8 | |||
| 56 | Heron, Goliath | Ardea goliath | 1 | 4.22 | 22 | |||
| 54 | Heron, Grey | Ardea cinerea | 1 | 4.54 | 30 | |||
| 57 | Heron, Purple | Ardea purpurea | 1 | 31.50 | 62 | |||
| 81 | Ibis, African Sacred | Threskiornis aethiopicus | 1 | 2.00 | 5 | |||
| 83 | Ibis, Glossy | Plegadis falcinellus | 1 | 1.00 | 1 | |||
| 84 | Ibis, Hadada | Bostrychia hagedash | 1 | 1.83 | 3 | |||
| 395 | Kingfisher, Giant | Megaceryle maxima | 1 | 1.00 | 1 | |||
| 394 | Kingfisher, Pied | Ceryle rudis | 1 | 1.71 | 3 | |||
| 245 | Lapwing, Blacksmith | Vanellus armatus | 1 | 14.26 | 57 | |||
| 509 | Martin, Brown-throated | Riparia paludicola | 1 | 1.00 | 1 | |||
| 172 | Osprey, Western | Pandion haliaetus | 1 | 1.33 | 2 | |||
| 237 | Plover, Kittlitz's | Charadrius pecuarius | 1 | 9.20 | 45 | |||
| 238 | Plover, Three-banded | Charadrius tricollaris | 1 | 7.38 | 27 | |||
| 102 | Pochard, Southern | Netta erythrophthalma | 1 | 16.00 | 47 | |||
| 258 | Sandpiper, Common | Actitis hypoleucos | 1 | 4.75 | 9 | |||
| 251 | Sandpiper, Curlew | Calidris ferruginea | 4 | 550.33 | 3101 | |||
| 262 | Sandpiper, Marsh | Tringa stagnatilis | 2 | 2.00 | 2 | |||
| 90 | Shelduck, South African | Tadorna cana | 1 | 41.82 | 644 | 420 | 210 | 500 |
| 94 | Shoveler, Cape | Anas smithii | 2 | 10.40 | 51 | |||
| 250 | Snipe, African | Gallinago nigripennis | 1 | 2.50 | 4 | |||
| 85 | Spoonbill, African | Platalea alba | 1 | 10.67 | 65 | |||
| 270 | Stilt, Black-winged | Himantopus himantopus | 1 | 9.00 | 55 | |||
| 253 | Stint, Little | Calidris minuta | 3 | 70.86 | 279 | |||
| 76 | Stork, Yellow-billed | Mycteria ibis | 1 | 1.00 | 1 | |||
| 98 | Teal, Cape | Anas capensis | 1 | 36.00 | 71 | |||
| 97 | Teal, Red-billed | Anas erythrorhyncha | 1 | 5.47 | 15 | |||
| 290 | Tern, Caspian | Hydroprogne caspia | 1 | 21.29 | 140 | 135 | 68 | 20 |
| 305 | Tern, Whiskered | Chlidonias hybrida | 1 | 49.00 | 97 | 75 | 85 | |
| 304 | Tern, White-winged | Chlidonias leucopterus | 1 | 101.22 | 874 | |||
| 685 | Wagtail, African Pied | Motacilla aguimp | 2 | 2.00 | 2 | |||
| 686 | Wagtail, Cape | Motacilla capensis | 1 | 8.24 | 43 |
Sunday 22 December 2024 03:32
FitzPatrick Institute of African Ornithology
Department
of Biological Sciences - University of Cape Town
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