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Grootvaly Wetland Reserve (26142829)

Gauteng

CWAC status REGISTERED-COUNTED REGULARLY
Authority Private
Management status UNKNOWN
Conservation status UNPROTECTED
IBA information SA021 - BLESBOKSPRUIT
Ramsar information
Heritage information
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Information 

Date_registered
1999-07-25
Brief_description
Part of the Blesbokspruit system, with open water, reedbeds and marshy habitat. Supports a wide variety of waterbirds, usually in small to moderate numbers, but the winter 1994 count was relatively high, with maximum counts of Glossy Ibis, Egyptian and Spurwinged Geese, Yellowbilled Duck and Redbilled Teal. Number of species, total count and total biomass all show a decline during the survey period; winter counts of Greyheaded Gull, Purple Gallinule and several waterfowl are declining, while winter Glossy Ibis numbers crashed after 1994. In contrast, winter numbers of Sacred Ibis are increasing. Egrets, Squacco Heron and Black- crowned Night Heron occur predominantly in summer. Blesbokspruit is severely threatened by discharge of mine water which drastically increases total water volume, maintains artificially high water levels in the dry season, and contains many pollutants, including salt.

SppCommon nameTaxonomic nameMinAvgMaxIBASubregional
IBA
RAMSAR
1016Anas platyrhynchos11.001
256Calidris pugnax162.21518  
269Avocet, PiedRecurvirostra avosetta117.4588   
67Bittern, LittleIxobrychus minutus11.502   
212Coot, Red-knobbedFulica cristata1174.22840   
50Cormorant, ReedMicrocarbo africanus14.7117   
47Cormorant, White-breasted Phalacrocorax lucidus15.2340   
199Crake, AfricanCrecopsis egregia11.001-1
203Crake, BlackZapornia flavirostra12.687
52Darter, AfricanAnhinga rufa11.504   
95Duck, African BlackAnas sparsa22.002   
101Duck, Fulvous WhistlingDendrocygna bicolor110.3648   
10014Duck, UnidentifiedN/A N/A88.008
100Duck, White-faced WhistlingDendrocygna viduata18.8223   
96Duck, Yellow-billedAnas undulata120.2671   
58Egret, GreatArdea alba11.001   
60Egret, IntermediateArdea intermedia22.002   
59Egret, LittleEgretta garzetta14.5717   
61Egret, Western CattleBubulcus ibis15.6218   
86Flamingo, Greater Phoenicopterus roseus113.4358   
89Goose, EgyptianAlopochen aegyptiaca210.2832   
88Goose, Spur-wingedPlectropterus gambensis19.29120   
6Grebe, LittleTachybaptus ruficollis18.3540   
263Greenshank, CommonTringa nebularia11.001   
288Gull, Grey-headedChroicocephalus cirrocephalus124.21246   
167Harrier, African MarshCircus ranivorus11.202
64Heron, BlackEgretta ardesiaca12.304   
69Heron, Black-crowned NightNycticorax nycticorax12.005   
55Heron, Black-headedArdea melanocephala11.565   
56Heron, GoliathArdea goliath11.333   
54Heron, GreyArdea cinerea12.7513   
57Heron, PurpleArdea purpurea11.964   
62Heron, SquaccoArdeola ralloides13.5623   
81Ibis, African SacredThreskiornis aethiopicus13.2426   
83Ibis, GlossyPlegadis falcinellus232.70150   
84Ibis, Hadada Bostrychia hagedash13.3912   
228Jacana, AfricanActophilornis africanus15.009   
397Kingfisher, MalachiteCorythornis cristatus11.252
394Kingfisher, PiedCeryle rudis11.753
247Lapwing, African WattledVanellus senegallus13.737   
245Lapwing, BlacksmithVanellus armatus210.4926   
210Moorhen, CommonGallinula chloropus121.43118   
361Owl, MarshAsio capensis11.001
233Plover, Common RingedCharadrius hiaticula11.001   
238Plover, Three-bandedCharadrius tricollaris13.3510   
102Pochard, SouthernNetta erythrophthalma16.3930   
197Rail, AfricanRallus caerulescens11.503-1
258Sandpiper, CommonActitis hypoleucos12.504  
251Sandpiper, CurlewCalidris ferruginea13.006  
262Sandpiper, MarshTringa stagnatilis14.8322   
264Sandpiper, WoodTringa glareola13.5711   
90Shelduck, South AfricanTadorna cana364.00180   
94Shoveler, CapeSpatula smithii19.0358   
250Snipe, AfricanGallinago nigripennis14.8125   
85Spoonbill, AfricanPlatalea alba11.252   
270Stilt, Black-wingedHimantopus himantopus114.33131   
253Stint, LittleCalidris minuta230.60114   
208Swamphen, AfricanPorphyrio madagascariensis15.0314  
99Teal, Blue-billedSpatula hottentota119.1568   
98Teal, CapeAnas capensis27.2248   
97Teal, Red-billedAnas erythrorhyncha131.03355   
305Tern, WhiskeredChlidonias hybrida15.7726   
304Tern, White-wingedChlidonias leucopterus114.3387   
10008Wader, UnidentifiedN/A N/A22.503
686Wagtail, CapeMotacilla capensis12.9311
FITZ logo Ramsar Wetlands International http://www.sanbi.org/

Tuesday 16 August 2022 02:04
FitzPatrick Institute of African Ornithology
Department of Biological Sciences - University of Cape Town

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