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    Zandvlei: Upper Estuary (34061828)

    Western Cape
    Card 504677
    Compiler 10691
    Location code 34061828Zandvlei: Upper Estuary (Western Cape)
    Start date 2015-01-17
    Season SSummer
    Start time 08:15
    End time 10:10
    Shoreline covered 90
    Openwater covered 95
    Total Species 43
    Total Count 2545
    Wetland Condition 2Partially full (mid tide for estuaries)
    Wetland Threats
    Count Condition 4Good
    Count Type 5Mixed
    Nil Count (No birds present) 0There were CWAC species present
    Notes A sunny clear sky with a gentle SE wind blowing. On the Thursday night and early Friday morning preceding the count it had rained. It was hoped this change in weather would increase the species and numbers but did not seem to have an influence. The inflow speed of the Westlake and Keysers Rivers into Zandvlei at the railway bridge was measured at 1 metre per 10 seconds. The estuary mouth was open. There was an injured Blacksmith Lapwing at the railway bridge on a mass of waterweed still able to feed its self with the insects on the decaying waterweed. It had a damaged wing (photo supplied). On the main water body there were not many birds to be seen. The Marina north section was counted and helped boost the species and numbers as this is where many birds were sheltering out of the wind based on the count. The Whiskered Tern was seen flying around with nesting material in its bill. A note on the 10/01/2015 at 13h30 3 White backed Ducks were seen in the Scout Basin in the small patch of Pondweed which has regrown this season. This is unusually early in the season for the species, based on previous years observations.
    Survey notes


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    Observer NumberNameOptions

    Current data
    Ref #SpeciesCountBreeding
    Pairs    		Breeding
    indicator
    4Grebe, Great Crested
    (Podiceps cristatus)    		170
    6Grebe, Little
    (Tachybaptus ruficollis)    		50
    44Gannet, Cape
    (Morus capensis)    		10
    47Cormorant, White-breasted
    (Phalacrocorax lucidus)    		20
    48Cormorant, Cape
    (Phalacrocorax capensis)    		150
    50Cormorant, Reed
    (Microcarbo africanus)    		220
    52Darter, African
    (Anhinga rufa)    		80
    54Heron, Grey
    (Ardea cinerea)    		40
    57Heron, Purple
    (Ardea purpurea)    		10
    59Egret, Little
    (Egretta garzetta)    		30
    61Egret, Western Cattle
    (Bubulcus ibis)    		30
    67Bittern, Little
    (Ixobrychus minutus)    		30
    81Ibis, African Sacred
    (Threskiornis aethiopicus)    		40
    84Ibis, Hadada
    (Bostrychia hagedash)    		60
    85Spoonbill, African
    (Platalea alba)    		20
    89Goose, Egyptian
    (Alopochen aegyptiaca)    		11210
    94Shoveler, Cape
    (Anas smithii)    		20
    96Duck, Yellow-billed
    (Anas undulata)    		270
    98Teal, Cape
    (Anas capensis)    		100
    167Harrier, African Marsh
    (Circus ranivorus)    		10
    208Swamphen, African
    (Porphyrio madagascariensis)    		30
    210Moorhen, Common
    (Gallinula chloropus)    		10
    212Coot, Red-knobbed
    (Fulica cristata)    		8210
    238Plover, Three-banded
    (Charadrius tricollaris)    		20
    245Lapwing, Blacksmith
    (Vanellus armatus)    		320
    258Sandpiper, Common
    (Actitis hypoleucos)    		20
    269Avocet, Pied
    (Recurvirostra avosetta)    		70
    270Stilt, Black-winged
    (Himantopus himantopus)    		100
    274Thick-knee, Water
    (Burhinus vermiculatus)    		20
    287Gull, Kelp
    (Larus dominicanus)    		310
    289Gull, Hartlaub's
    (Chroicocephalus hartlaubii)    		1720
    290Tern, Caspian
    (Hydroprogne caspia)    		140
    291Tern, Common
    (Sterna hirundo)    		70
    296Tern, Sandwich
    (Thalasseus sandvicensis)    		10
    298Tern, Greater Crested
    (Thalasseus bergii)    		10
    305Tern, Whiskered
    (Chlidonias hybrida)    		10
    394Kingfisher, Pied
    (Ceryle rudis)    		60
    397Kingfisher, Malachite
    (Corythornis cristatus)    		10
    686Wagtail, Cape
    (Motacilla capensis)    		140
    1016, Mallard
    (Anas platyrhynchos)    		10
    10006Duck, Domestic
    (Anas platyrhynchos domesticus)    		10
    10009Tern, Unidentified
    (N/A N/A)    		40
    10015Mallard, Hybrid
    (Anas hybrid)    		1540


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    Thursday 21 November 2024 06:42
    FitzPatrick Institute of African Ornithology
    Department of Biological Sciences - University of Cape Town

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