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    Zandvlei: Lower Estuary (34071828)

    Western Cape
    Card 504004
    Compiler 10691
    Location code 34071828Zandvlei: Lower Estuary (Western Cape)
    Start date 2011-07-23
    Season WWinter
    Start time 08:00
    End time 10:00
    Shoreline covered 95
    Openwater covered 95
    Total Species 35
    Total Count 1332
    Wetland Condition 2Partially full (mid tide for estuaries)
    Wetland Threats
    Count Condition 3Moderate
    Count Type 1On foot
    Nil Count (No birds present) 0There were CWAC species present
    Notes Mouth open, cold SE wind which got progressively stronger to about 35 kph from 09h00 onwards. Sunny, with very high cloud. There was a feeding frenzey with Harlaubs and Kelp Gulls following Cape and Reed Cormorants herding fish. 2 Pelicans also joined in for a short while. They moved around the upper vlei quite quickly following the fish. Africam Marsh Harrier was mobbed by Hartlaub Gulls, Yellowbilled Ducks and Blacksmith Lapwings.  Darter with netting / fishing line around its bill still alive and struggling. The Marina channels north of the Park Island bridge were done by Andy Rumbelow in a canoe.
    Survey notes


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    Observer NumberNameOptions

    Current data
    Ref #SpeciesCountBreeding
    Pairs    		Breeding
    indicator
    4Grebe, Great Crested
    (Podiceps cristatus)    		200
    6Grebe, Little
    (Tachybaptus ruficollis)    		510
    42Pelican, Great White
    (Pelecanus onocrotalus)    		30
    47Cormorant, White-breasted
    (Phalacrocorax lucidus)    		150
    48Cormorant, Cape
    (Phalacrocorax capensis)    		1560
    50Cormorant, Reed
    (Microcarbo africanus)    		1490
    52Darter, African
    (Anhinga rufa)    		440
    54Heron, Grey
    (Ardea cinerea)    		20
    55Heron, Black-headed
    (Ardea melanocephala)    		10
    57Heron, Purple
    (Ardea purpurea)    		10
    59Egret, Little
    (Egretta garzetta)    		120
    69Night Heron, Black-crowned
    (Nycticorax nycticorax)    		110
    81Ibis, African Sacred
    (Threskiornis aethiopicus)    		200Probably Breeding
    84Ibis, Hadada
    (Bostrychia hagedash)    		130Probably Breeding
    85Spoonbill, African
    (Platalea alba)    		170
    88Goose, Spur-winged
    (Plectropterus gambensis)    		150
    89Goose, Egyptian
    (Alopochen aegyptiaca)    		680Possibly Breeding
    94Shoveler, Cape
    (Anas smithii)    		50
    96Duck, Yellow-billed
    (Anas undulata)    		460
    98Teal, Cape
    (Anas capensis)    		20Possibly Breeding
    104Duck, White-backed
    (Thalassornis leuconotus)    		540
    167Harrier, African Marsh
    (Circus ranivorus)    		10
    210Moorhen, Common
    (Gallinula chloropus)    		90
    212Coot, Red-knobbed
    (Fulica cristata)    		2680Probably Breeding
    245Lapwing, Blacksmith
    (Vanellus armatus)    		100
    270Stilt, Black-winged
    (Himantopus himantopus)    		60
    287Gull, Kelp
    (Larus dominicanus)    		110
    289Gull, Hartlaub's
    (Chroicocephalus hartlaubii)    		1830
    394Kingfisher, Pied
    (Ceryle rudis)    		20
    397Kingfisher, Malachite
    (Corythornis cristatus)    		10
    686Wagtail, Cape
    (Motacilla capensis)    		70
    1016, Mallard
    (Anas platyrhynchos)    		560
    10006Duck, Domestic
    (Anas platyrhynchos domesticus)    		610
    10007Swan, Black
    (Cygnus atratus)    		10
    10015Mallard, Hybrid
    (Anas hybrid)    		110


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    Friday 31 October 2025 01:06
    FitzPatrick Institute of African Ornithology
    Department of Biological Sciences - University of Cape Town

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