Orange River: Mouth - Bridge (28381628) | |
---|---|
Northern Cape | |
CWAC status | REGISTERED-COUNTS SUSPENDED |
Authority | Northern Cape Department of Tourism, Environment and Conservation |
Management status | MINING PROPERTY |
Conservation status | PARTLY PROTECTED |
IBA information | SA030 - ORANGE RIVER MOUTH WETLANDS |
Ramsar information | ZA010 - Orange River Mouth |
Heritage information | |
View Cards | No |
Information |
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Date_registered |
1997-02-01 |
Brief_description |
IBA and Ramsar site, important for bird breeding and migration stopover. A delta-type river mouth with a braided channel during low flow months. Has sandbars, tidal basin, narrow floodplain, marshes (Phragmites, Scirpus, Sporobolus, Sarcocornia), pans, and a saltmarsh on one bank of the river mouth. Two counts (summer and winter 1997) are available, recording a large variety of waterbirds, including globally significant counts of Kelp and Hartlaub's Gulls, and nationally significant numbers of South African Shelduck and Cape Shoveller. Large numbers of Cape Teal, Avocet, Whitefronted, Chestnutbanded, Kittlitz's and Blacksmith Plovers, and Cape Wagtail, recorded; also good numbers of White Pelican and both flamingos. A severe threat is degradation of the salt marsh through mining; important threats are hunting/poaching, boating, fishing, livestock grazing/trampling, and siltation. Count is done from the Mouth up to the Sir Ernst Oppenheimer Bridge. |
Spp | Common name | Taxonomic name | Min | Avg | Max | IBA | Subregional IBA | RAMSAR |
---|---|---|---|---|---|---|---|---|
72 | Scopus umbretta | 1 | 1.50 | 2 | ||||
1016 | Anas platyrhynchos | 1 | 1.50 | 3 | ||||
256 | Calidris pugnax | 1 | 60.83 | 197 | ||||
255 | Calidris alba | 1 | 19.67 | 75 | ||||
269 | Avocet, Pied | Recurvirostra avosetta | 71 | 313.04 | 891 | 250 | 125 | 190 |
67 | Bittern, Little | Ixobrychus minutus | 1 | 1.00 | 1 | |||
212 | Coot, Red-knobbed | Fulica cristata | 1 | 82.35 | 334 | |||
48 | Cormorant, Cape | Phalacrocorax capensis | 1 | 116.24 | 984 | |||
51 | Cormorant, Crowned | Microcarbo coronatus | 1 | 1.00 | 1 | |||
50 | Cormorant, Reed | Microcarbo africanus | 1 | 13.27 | 42 | |||
47 | Cormorant, White-breasted | Phalacrocorax lucidus | 3 | 122.67 | 466 | 130 | ||
267 | Curlew, Eurasian | Numenius arquata | 1 | 1.00 | 1 | |||
52 | Darter, African | Anhinga rufa | 1 | 21.63 | 58 | |||
95 | Duck, African Black | Anas sparsa | 5 | 6.00 | 7 | |||
101 | Duck, Fulvous Whistling | Dendrocygna bicolor | 1 | 3.00 | 5 | |||
103 | Duck, Maccoa | Oxyura maccoa | 1 | 8.25 | 22 | |||
10014 | Duck, Unidentified | Anas sp. | 1 | 13.33 | 73 | |||
96 | Duck, Yellow-billed | Anas undulata | 17 | 87.96 | 181 | |||
58 | Egret, Great | Ardea alba | 1 | 1.00 | 1 | |||
59 | Egret, Little | Egretta garzetta | 5 | 61.11 | 222 | |||
61 | Egret, Western Cattle | Bubulcus ibis | 1 | 195.46 | 519 | |||
149 | Fish Eagle, African | Haliaeetus vocifer | 1 | 1.83 | 5 | |||
86 | Flamingo, Greater | Phoenicopterus roseus | 1 | 179.00 | 700 | 625 | ||
87 | Flamingo, Lesser | Phoeniconaias minor | 2 | 823.15 | 3002 | 600 | ||
44 | Gannet, Cape | Morus capensis | 1 | 1.00 | 1 | |||
89 | Goose, Egyptian | Alopochen aegyptiaca | 7 | 73.96 | 366 | |||
88 | Goose, Spur-winged | Plectropterus gambensis | 2 | 23.93 | 75 | |||
5 | Grebe, Black-necked | Podiceps nigricollis | 1 | 40.43 | 125 | 125 | ||
4 | Grebe, Great Crested | Podiceps cristatus | 1 | 1.00 | 1 | |||
6 | Grebe, Little | Tachybaptus ruficollis | 1 | 36.62 | 96 | |||
263 | Greenshank, Common | Tringa nebularia | 1 | 16.37 | 77 | |||
932 | Gull, Franklin's | Leucophaeus pipixcan | 1 | 1.00 | 1 | |||
288 | Gull, Grey-headed | Chroicocephalus cirrocephalus | 1 | 2.64 | 6 | |||
289 | Gull, Hartlaub's | Chroicocephalus hartlaubii | 17 | 251.44 | 707 | 250 | 125 | 300 |
287 | Gull, Kelp | Larus dominicanus | 15 | 354.04 | 1098 | 300 | 150 | 700 |
167 | Harrier, African Marsh | Circus ranivorus | 1 | 1.79 | 4 | |||
64 | Heron, Black | Egretta ardesiaca | 1 | 1.00 | 1 | |||
55 | Heron, Black-headed | Ardea melanocephala | 1 | 5.00 | 9 | |||
56 | Heron, Goliath | Ardea goliath | 1 | 1.67 | 3 | |||
54 | Heron, Grey | Ardea cinerea | 1 | 19.30 | 57 | |||
57 | Heron, Purple | Ardea purpurea | 1 | 1.95 | 4 | |||
62 | Heron, Squacco | Ardeola ralloides | 1 | 1.00 | 1 | |||
81 | Ibis, African Sacred | Threskiornis aethiopicus | 1 | 15.50 | 60 | |||
83 | Ibis, Glossy | Plegadis falcinellus | 1 | 3.92 | 6 | |||
84 | Ibis, Hadada | Bostrychia hagedash | 1 | 2.95 | 7 | |||
228 | Jacana, African | Actophilornis africanus | 1 | 2.67 | 6 | |||
285 | Jaeger, Pomarine | Stercorarius pomarinus | 1 | 1.00 | 1 | |||
395 | Kingfisher, Giant | Megaceryle maxima | 1 | 1.00 | 1 | |||
397 | Kingfisher, Malachite | Corythornis cristatus | 1 | 1.50 | 3 | |||
394 | Kingfisher, Pied | Ceryle rudis | 2 | 19.63 | 46 | |||
254 | Knot, Red | Calidris canutus | 1 | 7.50 | 14 | |||
245 | Lapwing, Blacksmith | Vanellus armatus | 10 | 119.70 | 424 | |||
10015 | Mallard, Hybrid | Anas hybrid | 3 | 3.00 | 3 | |||
509 | Martin, Brown-throated | Riparia paludicola | 1 | 1.00 | 1 | |||
210 | Moorhen, Common | Gallinula chloropus | 1 | 9.36 | 45 | |||
69 | Night Heron, Black-crowned | Nycticorax nycticorax | 1 | 14.24 | 35 | |||
172 | Osprey, Western | Pandion haliaetus | 1 | 1.00 | 1 | |||
361 | Owl, Marsh | Asio capensis | 1 | 2.00 | 3 | |||
231 | Oystercatcher, African | Haematopus moquini | 1 | 4.00 | 9 | |||
230 | Painted-snipe, Greater | Rostratula benghalensis | 2 | 2.00 | 2 | |||
42 | Pelican, Great White | Pelecanus onocrotalus | 3 | 124.08 | 395 | 300 | ||
236 | Plover, Chestnut-banded | Charadrius pallidus | 2 | 49.05 | 181 | 130 | ||
233 | Plover, Common Ringed | Charadrius hiaticula | 1 | 62.39 | 206 | |||
241 | Plover, Grey | Pluvialis squatarola | 1 | 8.83 | 40 | |||
237 | Plover, Kittlitz's | Charadrius pecuarius | 2 | 66.16 | 248 | |||
238 | Plover, Three-banded | Charadrius tricollaris | 1 | 17.31 | 62 | |||
235 | Plover, White-fronted | Charadrius marginatus | 4 | 57.30 | 164 | 125 | ||
102 | Pochard, Southern | Netta erythrophthalma | 1 | 2.00 | 3 | |||
258 | Sandpiper, Common | Actitis hypoleucos | 1 | 3.67 | 10 | |||
251 | Sandpiper, Curlew | Calidris ferruginea | 7 | 538.48 | 1666 | |||
262 | Sandpiper, Marsh | Tringa stagnatilis | 1 | 11.50 | 59 | |||
264 | Sandpiper, Wood | Tringa glareola | 1 | 3.83 | 12 | |||
90 | Shelduck, South African | Tadorna cana | 14 | 193.59 | 678 | 420 | 210 | 500 |
94 | Shoveler, Cape | Anas smithii | 28 | 156.00 | 373 | 350 | 175 | 350 |
85 | Spoonbill, African | Platalea alba | 7 | 35.30 | 124 | 75 | ||
270 | Stilt, Black-winged | Himantopus himantopus | 1 | 29.23 | 73 | |||
253 | Stint, Little | Calidris minuta | 1 | 337.91 | 1165 | |||
208 | Swamphen, African | Porphyrio madagascariensis | 1 | 2.00 | 4 | |||
98 | Teal, Cape | Anas capensis | 7 | 190.67 | 470 | |||
97 | Teal, Red-billed | Anas erythrorhyncha | 2 | 49.23 | 186 | |||
294 | Tern, Arctic | Sterna paradisaea | 14 | 14.00 | 14 | |||
290 | Tern, Caspian | Hydroprogne caspia | 1 | 25.78 | 165 | 135 | 68 | 20 |
291 | Tern, Common | Sterna hirundo | 1 | 480.86 | 4507 | 4000 | 1800 | |
300 | Tern, Damara | Sternula balaenarum | 1 | 20.14 | 58 | |||
298 | Tern, Greater Crested | Thalasseus bergii | 1 | 95.56 | 566 | 500 | 250 | 200 |
299 | Tern, Little | Sternula albifrons | 1 | 1.00 | 1 | |||
296 | Tern, Sandwich | Thalasseus sandvicensis | 2 | 95.07 | 602 | |||
10009 | Tern, Unidentified | N/A N/A | 3 | 316.23 | 1500 | |||
304 | Tern, White-winged | Chlidonias leucopterus | 3 | 10.00 | 17 | |||
274 | Thick-knee, Water | Burhinus vermiculatus | 1 | 1.00 | 1 | |||
232 | Turnstone, Ruddy | Arenaria interpres | 1 | 12.58 | 49 | |||
10008 | Wader, Unidentified | N/A N/A | 1 | 182.48 | 778 | |||
685 | Wagtail, African Pied | Motacilla aguimp | 1 | 3.40 | 13 | |||
686 | Wagtail, Cape | Motacilla capensis | 17 | 68.74 | 138 |