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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
269Avocet, PiedRecurvirostra avosetta134.44103  
212Coot, Red-knobbedFulica cristata16.5516   
48Cormorant, CapePhalacrocorax capensis1188.78943   
50Cormorant, ReedPhalacrocorax africanus13206.53481   
47Cormorant, White-breastedPhalacrocorax carbo325.63119   
203Crake, BlackAmaurornis flavirostris12.574
267Curlew, EurasianNumenius arquata13.148   
52Darter, AfricanAnhinga rufa15.3821   
10005Duck, HybridAnas hybrid44.004
1016Duck, MallardAnas platyrhynchos11.172
96Duck, Yellow-billedAnas undulata298.61490   
61Egret, CattleBubulcus ibis118.59113   
59Egret, LittleEgretta garzetta395.17264   
60Egret, Yellow-billedEgretta intermedia11.001   
149Fish-eagle, AfricanHaliaeetus vocifer12.205
266Godwit, Bar-tailedLimosa lapponica11.001   
89Goose, EgyptianAlopochen aegyptiacus3161.07604   
88Goose, Spur-wingedPlectropterus gambensis510.3324   
4Grebe, Great CrestedPodiceps cristatus11.001   
6Grebe, LittleTachybaptus ruficollis111.4140   
263Greenshank, CommonTringa nebularia7209.40780   
288Gull, Grey-headedLarus cirrocephalus11.672   
287Gull, KelpLarus dominicanus1310.45639300150 
4136Gull, Lesser Black-backedLarus fuscus11.001 
72Hamerkop, HamerkopScopus umbretta11.001   
55Heron, Black-headedArdea melanocephala14.3226   
54Heron, GreyArdea cinerea152.20123   
57Heron, PurpleArdea purpurea11.001   
81Ibis, African SacredThreskiornis aethiopicus1112.42338   
83Ibis, GlossyPlegadis falcinellus23.005   
84Ibis, HadedaBostrychia hagedash128.2986   
395Kingfisher, GiantMegaceryle maximus12.226
396Kingfisher, Half-collaredAlcedo semitorquata11.001
397Kingfisher, MalachiteAlcedo cristata11.364
394Kingfisher, PiedCeryle rudis215.6042
245Lapwing, BlacksmithVanellus armatus152.04121   
509Martin, Brown-throatedRiparia paludicola11.001
210Moorhen, CommonGallinula chloropus15.6216   
69Night-Heron, Black-crownedNycticorax nycticorax56.508  
172Osprey, OspreyPandion haliaetus11.914
231Oystercatcher, African BlackHaematopus moquini2053.67864824
233Plover, Common RingedCharadrius hiaticula137.58140   
239Plover, Greater SandCharadrius leschenaultii11.001   
241Plover, GreyPluvialis squatarola3183.19666   
237Plover, Kittlitz'sCharadrius pecuarius238.48101   
238Plover, Three-bandedCharadrius tricollaris110.2861   
235Plover, White-frontedCharadrius marginatus17.1617   
102Pochard, SouthernNetta erythrophthalma11.001   
197Rail, AfricanRallus caerulescens22.674
256Ruff, RuffPhilomachus pugnax47.5015  
258Sandpiper, CommonActitis hypoleucos12.9413  
251Sandpiper, CurlewCalidris ferruginea2979.753205  
262Sandpiper, MarshTringa stagnatilis131.63116   
895Sandpiper, PectoralCalidris melanotos11.001
264Sandpiper, WoodTringa glareola18.7150   
90Shelduck, South AfricanTadorna cana22.605   
94Shoveler, CapeAnas smithii1067.86216 175 
250Snipe, AfricanGallinago nigripennis12.574   
85Spoonbill, AfricanPlatalea alba117.7868   
270Stilt, Black-wingedHimantopus himantopus267.30184  
253Stint, LittleCalidris minuta16.1318   
79Stork, BlackCiconia nigra11.001   
98Teal, CapeAnas capensis124.2179   
99Teal, HottentotAnas hottentota13.506   
97Teal, Red-billedAnas erythrorhyncha14.9219   
290Tern, CaspianSterna caspia12.686   
291Tern, CommonSterna hirundo278.69207   
296Tern, SandwichSterna sandvicensis113.6734   
298Tern, SwiftSterna bergii155.78727500250200
10009Tern, UnidentifiedN/A N/A1334.6763
274Thick-knee, WaterBurhinus vermiculatus12.505   
232Turnstone, RuddyArenaria interpres11.754   
10008Wader, UnidentifiedN/A N/A520.8040
686Wagtail, CapeMotacilla capensis235.26107
268Whimbrel, CommonNumenius phaeopus7158.50554   
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Monday 25 September 2017 08:40
© Animal Demography Unit 2015
Department of Biological Sciences - University of Cape Town

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