Rynfield Dam (26092821) | |
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Gauteng | |
CWAC status | DISCONTINUED |
Authority | Private |
Management status | UNKNOWN |
Conservation status | UNPROTECTED |
IBA information | |
Ramsar information | |
Heritage information | |
View Cards | Click here |
Information |
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Date_registered |
1993-01-22 |
Brief_description |
Two dams, the smaller holding treated effluent from an adjacent sewage works; also some marshy areas along streams. A good variety of waterbirds occurs, including Great Crested Grebe, Goliath and Purple Herons, Little Bittern, Glossy Ibis, Black Crake and Wattled Plover, and good numbers of Purple Gallinule. Numbers of cormorants and Cattle Egret peak in summer, but Dabchick, Blackheaded Heron, Hadeda Ibis, Egyptian Goose, Moorhen, Redknobbed Coot and Greyheaded Gull are more numerous in winter. Exceptionally good counts of Reed Cormorant and Cattle Egret were recorded in summer 1997. A critical threat on the larger dam is jetski boating in the shallow headwaters, which were formerly excellent for waders but now rarely hold any birds; power boats keep to deep water at the lower end of the dam. |
Spp | Common name | Taxonomic name | Min | Avg | Max | IBA | Subregional IBA | RAMSAR |
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1016 | , Mallard | Anas platyrhynchos | 2 | 2.00 | 2 | |||
256 | , Ruff | Calidris pugnax | 9 | 11.00 | 13 | |||
269 | Avocet, Pied | Recurvirostra avosetta | 2 | 2.80 | 6 | |||
67 | Bittern, Little | Ixobrychus minutus | 1 | 1.00 | 1 | |||
212 | Coot, Red-knobbed | Fulica cristata | 27 | 105.31 | 332 | |||
50 | Cormorant, Reed | Microcarbo africanus | 7 | 35.69 | 183 | |||
47 | Cormorant, White-breasted | Phalacrocorax lucidus | 1 | 6.89 | 18 | |||
203 | Crake, Black | Zaporina flavirostra | 1 | 2.50 | 5 | |||
52 | Darter, African | Anhinga rufa | 1 | 5.40 | 13 | |||
95 | Duck, African Black | Anas sparsa | 1 | 1.00 | 1 | |||
101 | Duck, Fulvous Whistling | Dendrocygna bicolor | 10 | 10.00 | 10 | |||
104 | Duck, White-backed | Thalassornis leuconotus | 2 | 2.00 | 2 | |||
100 | Duck, White-faced Whistling | Dendrocygna viduata | 2 | 21.00 | 61 | |||
96 | Duck, Yellow-billed | Anas undulata | 1 | 9.33 | 23 | |||
60 | Egret, Intermediate | Ardea intermedia | 1 | 2.33 | 3 | |||
59 | Egret, Little | Egretta garzetta | 1 | 6.14 | 19 | |||
61 | Egret, Western Cattle | Bubulcus ibis | 1 | 141.45 | 967 | |||
89 | Goose, Egyptian | Alopochen aegyptiaca | 3 | 10.09 | 20 | |||
88 | Goose, Spur-winged | Plectropterus gambensis | 1 | 1.00 | 1 | |||
4 | Grebe, Great Crested | Podiceps cristatus | 1 | 2.60 | 5 | |||
6 | Grebe, Little | Tachybaptus ruficollis | 1 | 6.00 | 11 | |||
288 | Gull, Grey-headed | Chroicocephalus cirrocephalus | 3 | 12.33 | 46 | |||
64 | Heron, Black | Egretta ardesiaca | 1 | 1.40 | 2 | |||
55 | Heron, Black-headed | Ardea melanocephala | 5 | 22.54 | 66 | |||
56 | Heron, Goliath | Ardea goliath | 1 | 2.14 | 4 | |||
54 | Heron, Grey | Ardea cinerea | 1 | 1.50 | 3 | |||
57 | Heron, Purple | Ardea purpurea | 1 | 1.14 | 2 | |||
62 | Heron, Squacco | Ardeola ralloides | 1 | 2.64 | 4 | |||
81 | Ibis, African Sacred | Threskiornis aethiopicus | 1 | 11.64 | 29 | |||
83 | Ibis, Glossy | Plegadis falcinellus | 1 | 9.13 | 19 | |||
84 | Ibis, Hadada | Bostrychia hagedash | 6 | 21.09 | 67 | |||
394 | Kingfisher, Pied | Ceryle rudis | 1 | 1.00 | 1 | |||
247 | Lapwing, African Wattled | Vanellus senegallus | 2 | 3.00 | 7 | |||
245 | Lapwing, Blacksmith | Vanellus armatus | 2 | 16.00 | 25 | |||
509 | Martin, Brown-throated | Riparia paludicola | 1 | 1.00 | 1 | |||
210 | Moorhen, Common | Gallinula chloropus | 8 | 20.92 | 38 | |||
69 | Night Heron, Black-crowned | Nycticorax nycticorax | 1 | 1.50 | 2 | |||
237 | Plover, Kittlitz's | Charadrius pecuarius | 2 | 2.00 | 2 | |||
238 | Plover, Three-banded | Charadrius tricollaris | 3 | 6.00 | 12 | |||
102 | Pochard, Southern | Netta erythrophthalma | 1 | 4.60 | 14 | |||
258 | Sandpiper, Common | Actitis hypoleucos | 4 | 4.00 | 4 | |||
251 | Sandpiper, Curlew | Calidris ferruginea | 4 | 4.50 | 5 | |||
262 | Sandpiper, Marsh | Tringa stagnatilis | 4 | 4.50 | 5 | |||
264 | Sandpiper, Wood | Tringa glareola | 1 | 4.00 | 7 | |||
94 | Shoveler, Cape | Anas smithii | 2 | 4.00 | 10 | |||
250 | Snipe, African | Gallinago nigripennis | 1 | 7.80 | 16 | |||
85 | Spoonbill, African | Platalea alba | 1 | 2.00 | 5 | |||
270 | Stilt, Black-winged | Himantopus himantopus | 2 | 3.50 | 6 | |||
253 | Stint, Little | Calidris minuta | 3 | 8.50 | 14 | |||
208 | Swamphen, African | Porphyrio madagascariensis | 1 | 12.17 | 30 | |||
99 | Teal, Blue-billed | Anas hottentota | 2 | 4.90 | 11 | |||
98 | Teal, Cape | Anas capensis | 6 | 6.00 | 6 | |||
97 | Teal, Red-billed | Anas erythrorhyncha | 2 | 14.10 | 55 | |||
305 | Tern, Whiskered | Chlidonias hybrida | 3 | 15.33 | 33 | |||
304 | Tern, White-winged | Chlidonias leucopterus | 19 | 49.00 | 79 | |||
686 | Wagtail, Cape | Motacilla capensis | 4 | 14.46 | 45 |