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Knysna Lagoon (34032302)

Western Cape

CWAC status REGISTERED-COUNTED REGULARLY
Authority South African National Parks & Private
Management status UNKNOWN
Conservation status UNPROTECTED
IBA information
Ramsar information
Heritage information
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Information 

Date_registered
1993-01-24
Brief_description
Tidal lagoon and open estuary of the Knysna River. Globally significant numbers of the near-threatened African Black Oystercatcher in winter, and nationally significant numbers of this and Cape Shoveller in summer, when good numbers of Yellowbilled Duck also occur in some years. Noteworthy counts of Grey Plover, Greenshank, Curlew Sandpiper and Whimbrel in summer, and of Blackwinged Stilt in winter. Seasonal variation in types of birds using site well shown by biomass and total count graphs: large numbers of small birds (mostly shorebirds) in summer and smaller numbers of large birds (cormorants, egrets, ibises, gulls) in winter. Critically threatened by siltation from local urban development; important threats are bait collection, recreational activities and harassment by dogs.

SppCommon nameTaxonomic nameMinAvgMaxIBASubregional
IBA
RAMSAR
72Scopus umbretta11.001   
256Calidris pugnax47.5015  
1016Anas platyrhynchos11.172
269Avocet, PiedRecurvirostra avosetta138.13127 125 
212Coot, Red-knobbedFulica cristata16.5216   
49Cormorant, BankPhalacrocorax neglectus3939.0039   
48Cormorant, CapePhalacrocorax capensis1175.13943   
51Cormorant, CrownedMicrocarbo coronatus22.002   
50Cormorant, ReedMicrocarbo africanus1192.16481   
47Cormorant, White-breasted Phalacrocorax lucidus121.98119   
203Crake, BlackZapornia flavirostra12.504
267Curlew, EurasianNumenius arquata13.148   
52Darter, AfricanAnhinga rufa15.2421   
10005Duck, HybridAnas hybrid44.004
96Duck, Yellow-billedAnas undulata283.66490   
149Eagle, African FishHaliaeetus vocifer12.105
60Egret, IntermediateArdea intermedia11.001   
59Egret, LittleEgretta garzetta189.19264   
61Egret, Western CattleBubulcus ibis122.58151   
86Flamingo, Greater Phoenicopterus roseus22.002   
266Godwit, Bar-tailedLimosa lapponica11.001   
89Goose, EgyptianAlopochen aegyptiaca1143.46604   
88Goose, Spur-wingedPlectropterus gambensis514.5045   
4Grebe, Great CrestedPodiceps cristatus11.293   
6Grebe, LittleTachybaptus ruficollis110.3940   
263Greenshank, CommonTringa nebularia2188.30780   
288Gull, Grey-headedChroicocephalus cirrocephalus11.672   
287Gull, KelpLarus dominicanus1278.791123300150700
4136Gull, Lesser Black-backedLarus fuscus11.001 
69Heron, Black-crowned NightNycticorax nycticorax14.678   
55Heron, Black-headedArdea melanocephala14.5326   
54Heron, GreyArdea cinerea147.97123   
57Heron, PurpleArdea purpurea11.001   
81Ibis, African SacredThreskiornis aethiopicus1149.38205820001000 
83Ibis, GlossyPlegadis falcinellus23.005   
84Ibis, Hadada Bostrychia hagedash127.1186   
395Kingfisher, GiantMegaceryle maxima12.126
396Kingfisher, Half-collaredAlcedo semitorquata11.001
397Kingfisher, MalachiteCorythornis cristatus11.334
394Kingfisher, PiedCeryle rudis114.5342
245Lapwing, BlacksmithVanellus armatus147.57121   
509Martin, Brown-throatedRiparia paludicola11.001
210Moorhen, CommonGallinula chloropus17.5329   
172Osprey, WesternPandion haliaetus11.824
231Oystercatcher, AfricanHaematopus moquini2054.73110482455
922Plover, American GoldenPluvialis dominica44.004
233Plover, Common RingedCharadrius hiaticula135.56140   
239Plover, Greater SandCharadrius leschenaultii11.001   
241Plover, GreyPluvialis squatarola2169.02666   
237Plover, Kittlitz'sCharadrius pecuarius135.20101   
238Plover, Three-bandedCharadrius tricollaris19.6561   
235Plover, White-frontedCharadrius marginatus16.7817   
102Pochard, SouthernNetta erythrophthalma11.001   
197Rail, AfricanRallus caerulescens22.674-1
258Sandpiper, CommonActitis hypoleucos13.3613  
251Sandpiper, CurlewCalidris ferruginea2875.413205  
262Sandpiper, MarshTringa stagnatilis128.33116   
895Sandpiper, PectoralCalidris melanotos11.001
257Sandpiper, TerekXenus cinereus11.001 
264Sandpiper, WoodTringa glareola18.7150   
90Shelduck, South AfricanTadorna cana22.605   
94Shoveler, CapeSpatula smithii562.02216 175 
250Snipe, AfricanGallinago nigripennis12.574   
85Spoonbill, AfricanPlatalea alba118.18100 75 
270Stilt, Black-wingedHimantopus himantopus157.93184   
253Stint, LittleCalidris minuta16.1318   
79Stork, BlackCiconia nigra11.001   
208Swamphen, AfricanPorphyrio madagascariensis11.001  
99Teal, Blue-billedSpatula hottentota13.506   
98Teal, CapeAnas capensis122.7879   
97Teal, Red-billedAnas erythrorhyncha15.7919   
290Tern, CaspianHydroprogne caspia12.686   
291Tern, CommonSterna hirundo168.74207   
298Tern, Greater CrestedThalasseus bergii149.33727500250200
296Tern, SandwichThalasseus sandvicensis113.3234   
10009Tern, UnidentifiedN/A N/A1336.2063
274Thick-knee, WaterBurhinus vermiculatus13.087   
232Turnstone, RuddyArenaria interpres11.754   
10008Wader, UnidentifiedN/A N/A216.7140
686Wagtail, CapeMotacilla capensis131.12107
268Whimbrel, Eurasian Numenius phaeopus1145.72554   
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Monday 06 February 2023 06:01
FitzPatrick Institute of African Ornithology
Department of Biological Sciences - University of Cape Town

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