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    Zwartkops River Estuary (33522538)

    Eastern Cape
    Card 512422
    Compiler 2
    Location code 33522538Zwartkops River Estuary (Eastern Cape)
    Start date 2026-07-14
    Season WWinter
    Start time 08:30
    End time 15:05
    Shoreline covered 80
    Openwater covered 90
    Total Species 35
    Total Count 4058
    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 Count by boat & foot to vantage points. Many threats to this urban estuary (e.g. continuous sewerage spills). Moderate flood 5-7 May & small flood 3-4 June 2026 has left soft sediment in intertidal areas & reduced area of Zostera. Fresh surface water & brown algal bloom throughout estuary.
    Survey notes


    Add additional observers
    Observer NumberNameOptions
    0Arthur Rump
     
    0Sibulele Peter
     
    2Paul Martin
     

    Current data
    Ref #SpeciesCountBreeding
    Pairs    		Breeding
    indicator
    47Cormorant, White-breasted
    (Phalacrocorax lucidus)    		530
    48Cormorant, Cape
    (Phalacrocorax capensis)    		19070
    50Cormorant, Reed
    (Microcarbo africanus)    		570
    52Darter, African
    (Anhinga rufa)    		150
    54Heron, Grey
    (Ardea cinerea)    		140
    56Heron, Goliath
    (Ardea goliath)    		20
    58Egret, Great
    (Ardea alba)    		110
    59Egret, Little
    (Egretta garzetta)    		2580
    61Egret, Western Cattle
    (Bubulcus ibis)    		40
    81Ibis, African Sacred
    (Threskiornis aethiopicus)    		320
    84Ibis, Hadada
    (Bostrychia hagedash)    		20
    85Spoonbill, African
    (Platalea alba)    		290
    89Goose, Egyptian
    (Alopochen aegyptiaca)    		201Confirmed Breeding
    94Shoveler, Cape
    (Anas smithii)    		30
    96Duck, Yellow-billed
    (Anas undulata)    		170
    98Teal, Cape
    (Anas capensis)    		20
    149Fish Eagle, African
    (Haliaeetus vocifer)    		20
    231Oystercatcher, African
    (Haematopus moquini)    		390
    232Turnstone, Ruddy
    (Arenaria interpres)    		270
    235Plover, White-fronted
    (Charadrius marginatus)    		530
    237Plover, Kittlitz's
    (Charadrius pecuarius)    		180
    239Plover, Greater Sand
    (Charadrius leschenaultii)    		20
    241Plover, Grey
    (Pluvialis squatarola)    		860
    245Lapwing, Blacksmith
    (Vanellus armatus)    		250
    263Greenshank, Common
    (Tringa nebularia)    		30
    266Godwit, Bar-tailed
    (Limosa lapponica)    		40
    268Whimbrel, Eurasian
    (Numenius phaeopus)    		860
    274Thick-knee, Water
    (Burhinus vermiculatus)    		80
    287Gull, Kelp
    (Larus dominicanus)    		10660
    288Gull, Grey-headed
    (Chroicocephalus cirrocephalus)    		1060
    289Gull, Hartlaub's
    (Chroicocephalus hartlaubii)    		130
    290Tern, Caspian
    (Hydroprogne caspia)    		20
    291Tern, Common
    (Sterna hirundo)    		380
    394Kingfisher, Pied
    (Ceryle rudis)    		180
    686Wagtail, Cape
    (Motacilla capensis)    		360


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

    Monday 27 July 2026 11:56
    FitzPatrick Institute of African Ornithology
    Department of Biological Sciences - University of Cape Town

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