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Knellpoort Dam (29462653)

Free State

Authority Free State Department of Tourism, Environmental and Economic Affairs
Management status STATE IMPOUNDMENT
Conservation status UNKNOWN
IBA information
Ramsar information
Heritage information
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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.

SppCommon nameTaxonomic nameMinAvgMaxIBASubregional
256Calidris pugnax145.90187  
67Bittern, LittleIxobrychus minutus224224.00224   
212Coot, Red-knobbedFulica cristata1577.59501950002500 
50Cormorant, ReedMicrocarbo africanus123.97266   
47Cormorant, White-breasted Phalacrocorax lucidus126.69258  130
216Crane, BlueGrus paradisea22.002   
52Darter, AfricanAnhinga rufa225.61127   
95Duck, African BlackAnas sparsa13.0016   
10003Duck, MuscovyCairina moschata44.004
100Duck, White-faced WhistlingDendrocygna viduata38.5013   
96Duck, Yellow-billedAnas undulata194.341087 8501000
149Eagle, African FishHaliaeetus vocifer11.904
58Egret, GreatArdea alba22.673   
60Egret, IntermediateArdea intermedia11.001   
59Egret, LittleEgretta garzetta117.38137   
61Egret, Western CattleBubulcus ibis139.45209   
86Flamingo, Greater Phoenicopterus roseus24.006   
89Goose, EgyptianAlopochen aegyptiaca2389.041522   
88Goose, Spur-wingedPlectropterus gambensis272.72334   
5Grebe, Black-neckedPodiceps nigricollis22.002   
4Grebe, Great CrestedPodiceps cristatus16.3326 25 
6Grebe, LittleTachybaptus ruficollis117.16129   
263Greenshank, CommonTringa nebularia14.3315   
288Gull, Grey-headedChroicocephalus cirrocephalus149.25190   
169Harrier, BlackCircus maurus11.001
64Heron, BlackEgretta ardesiaca11.001   
55Heron, Black-headedArdea melanocephala12.678   
56Heron, GoliathArdea goliath14.2222   
54Heron, GreyArdea cinerea14.5430   
57Heron, PurpleArdea purpurea131.5062   
81Ibis, African SacredThreskiornis aethiopicus12.005   
83Ibis, GlossyPlegadis falcinellus11.001   
84Ibis, Hadada Bostrychia hagedash11.833   
395Kingfisher, GiantMegaceryle maxima11.001
394Kingfisher, PiedCeryle rudis11.713
245Lapwing, BlacksmithVanellus armatus114.2657   
509Martin, Brown-throatedRiparia paludicola11.001
172Osprey, WesternPandion haliaetus11.332
237Plover, Kittlitz'sCharadrius pecuarius19.2045   
238Plover, Three-bandedCharadrius tricollaris17.3827   
102Pochard, SouthernNetta erythrophthalma116.0047   
258Sandpiper, CommonActitis hypoleucos14.759  
251Sandpiper, CurlewCalidris ferruginea4550.333101  
262Sandpiper, MarshTringa stagnatilis22.002   
90Shelduck, South AfricanTadorna cana141.82644420210500
94Shoveler, CapeSpatula smithii210.4051   
250Snipe, AfricanGallinago nigripennis12.504   
85Spoonbill, AfricanPlatalea alba110.6765   
270Stilt, Black-wingedHimantopus himantopus19.0055   
253Stint, LittleCalidris minuta370.86279   
76Stork, Yellow-billedMycteria ibis11.001   
98Teal, CapeAnas capensis136.0071   
97Teal, Red-billedAnas erythrorhyncha15.4715   
290Tern, CaspianHydroprogne caspia121.291401356820
305Tern, WhiskeredChlidonias hybrida149.0097 7585
304Tern, White-wingedChlidonias leucopterus1101.22874   
685Wagtail, African PiedMotacilla aguimp22.002
686Wagtail, CapeMotacilla capensis18.2443
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Saturday 02 December 2023 07:45
FitzPatrick Institute of African Ornithology
Department of Biological Sciences - University of Cape Town

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