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    Zwartkops River Estuary (33522538)

    Eastern Cape
    Card 510776
    Compiler 2
    Location code 33522538Zwartkops River Estuary (Eastern Cape)
    Start date 2024-07-06
    Season WWinter
    Start time 09:25
    End time 15:35
    Shoreline covered 80
    Openwater covered 90
    Total Species 47
    Total Count 3953
    Wetland Condition 3Very little standing water (low tide for estuaries
    Wetland Threats 15Pollution by domestic sewage
    Count Condition 5Ideal
    Count Type 5Mixed
    Nil Count (No birds present) 0There were CWAC species present
    Notes Flood on 2 June 2024 (200mm, Uitenhage). Upper reaches all freshwater, silt deposited & some bank erosion upstream of Wylde Bridge. Dead Water Hyacinth washed up on HWM. No harmful algal bloom. Zostera beds little affected. Boat to vantage points, by foot on mudbanks. Many threats to this urban estuary.
    Survey notes


    Add additional observers
    Observer NumberNameOptions
    0Arthur Rump
     
    0Carolyn Rheeder
     
    2Paul Martin
     

    Current data
    Ref #SpeciesCountBreeding
    Pairs    		Breeding
    indicator
    6Grebe, Little
    (Tachybaptus ruficollis)    		80
    47Cormorant, White-breasted
    (Phalacrocorax lucidus)    		350
    48Cormorant, Cape
    (Phalacrocorax capensis)    		10340
    50Cormorant, Reed
    (Microcarbo africanus)    		1090
    52Darter, African
    (Anhinga rufa)    		90
    54Heron, Grey
    (Ardea cinerea)    		120
    55Heron, Black-headed
    (Ardea melanocephala)    		10
    56Heron, Goliath
    (Ardea goliath)    		30
    57Heron, Purple
    (Ardea purpurea)    		10
    58Egret, Great
    (Ardea alba)    		100
    59Egret, Little
    (Egretta garzetta)    		1370
    81Ibis, African Sacred
    (Threskiornis aethiopicus)    		700
    84Ibis, Hadada
    (Bostrychia hagedash)    		20
    85Spoonbill, African
    (Platalea alba)    		210
    86Flamingo, Greater
    (Phoenicopterus roseus)    		2040
    87Flamingo, Lesser
    (Phoeniconaias minor)    		680
    89Goose, Egyptian
    (Alopochen aegyptiaca)    		360
    94Shoveler, Cape
    (Anas smithii)    		20
    96Duck, Yellow-billed
    (Anas undulata)    		280
    98Teal, Cape
    (Anas capensis)    		100
    149Fish Eagle, African
    (Haliaeetus vocifer)    		20
    167Harrier, African Marsh
    (Circus ranivorus)    		10
    210Moorhen, Common
    (Gallinula chloropus)    		10
    231Oystercatcher, African
    (Haematopus moquini)    		420
    232Turnstone, Ruddy
    (Arenaria interpres)    		620
    235Plover, White-fronted
    (Charadrius marginatus)    		520
    238Plover, Three-banded
    (Charadrius tricollaris)    		60
    241Plover, Grey
    (Pluvialis squatarola)    		870
    245Lapwing, Blacksmith
    (Vanellus armatus)    		720
    251Sandpiper, Curlew
    (Calidris ferruginea)    		260
    263Greenshank, Common
    (Tringa nebularia)    		210
    266Godwit, Bar-tailed
    (Limosa lapponica)    		500
    267Curlew, Eurasian
    (Numenius arquata)    		30
    268Whimbrel, Eurasian
    (Numenius phaeopus)    		2540
    269Avocet, Pied
    (Recurvirostra avosetta)    		90
    270Stilt, Black-winged
    (Himantopus himantopus)    		1470
    274Thick-knee, Water
    (Burhinus vermiculatus)    		40
    287Gull, Kelp
    (Larus dominicanus)    		10910
    288Gull, Grey-headed
    (Chroicocephalus cirrocephalus)    		780
    289Gull, Hartlaub's
    (Chroicocephalus hartlaubii)    		140
    290Tern, Caspian
    (Hydroprogne caspia)    		80
    291Tern, Common
    (Sterna hirundo)    		680
    296Tern, Sandwich
    (Thalasseus sandvicensis)    		10
    298Tern, Greater Crested
    (Thalasseus bergii)    		130
    394Kingfisher, Pied
    (Ceryle rudis)    		160
    395Kingfisher, Giant
    (Megaceryle maxima)    		10
    686Wagtail, Cape
    (Motacilla capensis)    		240


    FITZ logo   Ramsar Wetlands International http://www.sanbi.org/

    Thursday 11 December 2025 11:13
    FitzPatrick Institute of African Ornithology
    Department of Biological Sciences - University of Cape Town

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