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Rietvlei Wetland Reserve: Diep River (33501830)

Western Cape

CWAC status REGISTERED-COUNTED IRREGULARLY
Authority City of Cape Town Biodiversity Management Branch & Private
Management status TOWN COUNCIL PROPERTY
Conservation status PROTECTED
IBA information SA111 - RIETVLEI WETLAND RESERVE
Ramsar information
Heritage information
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Information 

Date_registered
2002-07-19
Brief_description
An IBA. Natural pan and excavated vleis; water levels very variable; much emergent sedge plus mud and sand. Also sewage ponds with Phragmites and Typha. Bird numbers high; globally significant numbers of Cape Shoveller (highest 1995-96), Kelp Gull (1994 and 1995 winters) and Hartlaub's Gull; nationally significant numbers of African Spoonbill, Yellowbilled Duck (winter 1995), African Black Oystercatcher, and Avocet (summer 1993). Highest counts of grebes, pelicans, cormorants, Darter, Redknobbed Coot and Kelp Gull in winter; of geese, Hartlaub's Gull and Cape Wagtail in summer, when shorebird counts also high. Little Bittern resident; African Rail, Baillon's Crake and Painted Snipe occur. Threats include spread of alien vegetation, especially Paspalum vaginatum, siltation, eutrophication and urbanisation.

SppCommon nameTaxonomic nameMinAvgMaxIBASubregional
IBA
RAMSAR
1016Anas platyrhynchos33.003
269Avocet, PiedRecurvirostra avosetta88.008   
212Coot, Red-knobbedFulica cristata123.1776   
50Cormorant, ReedMicrocarbo africanus12.578   
47Cormorant, White-breasted Phalacrocorax lucidus11.502   
52Darter, AfricanAnhinga rufa12.454   
10006Duck, DomesticAnas platyrhynchos24.507
10014Duck, UnidentifiedN/A N/A22.002
104Duck, White-backedThalassornis leuconotus22.002   
96Duck, Yellow-billedAnas undulata113.4067   
149Eagle, African FishHaliaeetus vocifer11.001
60Egret, IntermediateArdea intermedia14.9113   
59Egret, LittleEgretta garzetta11.713   
61Egret, Western CattleBubulcus ibis22.673   
86Flamingo, Greater Phoenicopterus roseus88.008   
92Goose, African PygmyNettapus auritus11.001   
89Goose, EgyptianAlopochen aegyptiaca18.3255   
88Goose, Spur-wingedPlectropterus gambensis11.502   
5Grebe, Black-neckedPodiceps nigricollis11.001   
6Grebe, LittleTachybaptus ruficollis11.643   
289Gull, Hartlaub'sChroicocephalus hartlaubii115.6264   
287Gull, KelpLarus dominicanus15.5017   
167Harrier, African MarshCircus ranivorus11.001
69Heron, Black-crowned NightNycticorax nycticorax11.502   
55Heron, Black-headedArdea melanocephala12.255   
54Heron, GreyArdea cinerea12.739   
57Heron, PurpleArdea purpurea11.604   
81Ibis, African SacredThreskiornis aethiopicus114.13102   
83Ibis, GlossyPlegadis falcinellus15.4022   
84Ibis, Hadada Bostrychia hagedash13.3312   
395Kingfisher, GiantMegaceryle maxima11.001
394Kingfisher, PiedCeryle rudis12.505
247Lapwing, African WattledVanellus senegallus1818.0018   
245Lapwing, BlacksmithVanellus armatus17.8361   
210Moorhen, CommonGallinula chloropus18.8047   
42Pelican, Great WhitePelecanus onocrotalus115.3337   
238Plover, Three-bandedCharadrius tricollaris12.334   
262Sandpiper, MarshTringa stagnatilis77.007   
90Shelduck, South AfricanTadorna cana22.002   
94Shoveler, CapeSpatula smithii110.5039   
85Spoonbill, AfricanPlatalea alba18.0015   
270Stilt, Black-wingedHimantopus himantopus29.2723   
76Stork, Yellow-billedMycteria ibis99.009   
208Swamphen, AfricanPorphyrio madagascariensis11.001  
99Teal, Blue-billedSpatula hottentota11.001   
98Teal, CapeAnas capensis15.1712   
97Teal, Red-billedAnas erythrorhyncha113.8658   
274Thick-knee, WaterBurhinus vermiculatus11.001   
686Wagtail, CapeMotacilla capensis01.756
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Monday 06 February 2023 05:00
FitzPatrick Institute of African Ornithology
Department of Biological Sciences - University of Cape Town

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