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Northern Treatment Works (29483100)
KwaZulu-Natal
CWAC status	REGISTERED-COUNTED REGULARLY
Authority	Private
Management status	TOWN COUNCIL PROPERTY
Conservation status	UNPROTECTED
IBA information
Ramsar information
Heritage information
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Information
Date_registered
1993-01-16
Brief_description
Sewage works with open and reed-fringed ponds, some floating vegetation, reedbeds, and some mud. Holds a good variety of waterbirds, including Greenbacked Heron, Blackcrowned Night Heron, Little Bittern, Black Crake, Purple Gallinule and African Jacana. Waterfowl numbers generally low, except for Egyptian Goose; 35 Black Duck were counted in summer 1995. Cormorant, Cattle Egret and Sacred Ibis numbers are good; all peak in winter. Whiskered and Whitewinged Tern numbers are good in summer, when Common and Little Terns have also occurred. In summer 1997, 272 Wood Sandpiper were recorded. Recent increases in numbers of Whitebreasted Cormorant, Sacred Ibis and Egyptian Goose have contributed to the upward trend shown on total count and biomass graphs. A critical threat is posed by over-trimming of vegetation at pond margins; other threats are alien plant infestation, and the lowering of nutrients following changes in sewage processing methods.

Spp	Common name	Taxonomic name	Min	Avg	Max	Subregional IBA	RAMSAR
72		Scopus umbretta	1	5.21	15
1016		Anas platyrhynchos	1	1.00	1
256		Calidris pugnax	1	49.00	152
67	Bittern, Little	Ixobrychus minutus	1	1.00	1
212	Coot, Red-knobbed	Fulica cristata	1	6.31	23
50	Cormorant, Reed	Microcarbo africanus	2	35.88	170
47	Cormorant, White-breasted	Phalacrocorax lucidus	1	39.65	117
203	Crake, Black	Zaporina flavirostra	1	2.00	5
52	Darter, African	Anhinga rufa	1	6.25	26
95	Duck, African Black	Anas sparsa	1	8.40	32
10006	Duck, Domestic	Anas platyrhynchos domesticus	1	1.50	2
101	Duck, Fulvous Whistling	Dendrocygna bicolor	24	24.00	24
10005	Duck, Hybrid	Anas hybrid	2	2.00	2
10014	Duck, Unidentified	Anas sp.	1	1.50	2
104	Duck, White-backed	Thalassornis leuconotus	5	10.00	15
100	Duck, White-faced Whistling	Dendrocygna viduata	1	10.00	44
96	Duck, Yellow-billed	Anas undulata	2	12.88	107
58	Egret, Great	Ardea alba	1	1.00	1
60	Egret, Intermediate	Ardea intermedia	1	2.00	3
59	Egret, Little	Egretta garzetta	1	3.97	12
61	Egret, Western Cattle	Bubulcus ibis	1	89.23	400
149	Fish Eagle, African	Haliaeetus vocifer	1	1.44	2
10004	Goose, Domestic	Anser anser domesticus	6	21.28	32
89	Goose, Egyptian	Alopochen aegyptiaca	5	322.67	649
88	Goose, Spur-winged	Plectropterus gambensis	1	8.44	28
4	Grebe, Great Crested	Podiceps cristatus	1	1.00	1
6	Grebe, Little	Tachybaptus ruficollis	1	19.07	70
263	Greenshank, Common	Tringa nebularia	1	2.17	5
288	Gull, Grey-headed	Chroicocephalus cirrocephalus	2	2.00	2
289	Gull, Hartlaub's	Chroicocephalus hartlaubii	5	5.00	5
64	Heron, Black	Egretta ardesiaca	1	1.00	1
55	Heron, Black-headed	Ardea melanocephala	1	3.40	7
56	Heron, Goliath	Ardea goliath	1	1.00	1
54	Heron, Grey	Ardea cinerea	1	3.75	12
57	Heron, Purple	Ardea purpurea	1	1.43	3
62	Heron, Squacco	Ardeola ralloides	1	1.50	3
63	Heron, Striated	Butorides striata	1	6.00	12
81	Ibis, African Sacred	Threskiornis aethiopicus	5	99.78	473
83	Ibis, Glossy	Plegadis falcinellus	1	1.00	1
84	Ibis, Hadada	Bostrychia hagedash	3	21.56	52
228	Jacana, African	Actophilornis africanus	1	12.94	45
395	Kingfisher, Giant	Megaceryle maxima	1	1.45	2
397	Kingfisher, Malachite	Corythornis cristatus	1	3.70	9
394	Kingfisher, Pied	Ceryle rudis	1	3.69	9
245	Lapwing, Blacksmith	Vanellus armatus	5	23.56	48
509	Martin, Brown-throated	Riparia paludicola	1	1.00	1
210	Moorhen, Common	Gallinula chloropus	1	2.50	5
69	Night Heron, Black-crowned	Nycticorax nycticorax	1	6.10	23
42	Pelican, Great White	Pelecanus onocrotalus	1	16.94	89
41	Pelican, Pink-backed	Pelecanus rufescens	1	1.00	1
238	Plover, Three-banded	Charadrius tricollaris	1	10.21	35
102	Pochard, Southern	Netta erythrophthalma	1	3.67	8
258	Sandpiper, Common	Actitis hypoleucos	1	4.11	11
251	Sandpiper, Curlew	Calidris ferruginea	7	14.50	22
262	Sandpiper, Marsh	Tringa stagnatilis	1	2.00	4
264	Sandpiper, Wood	Tringa glareola	1	39.43	272
90	Shelduck, South African	Tadorna cana	1	2.47	6
94	Shoveler, Cape	Anas smithii	1	1.75	3
85	Spoonbill, African	Platalea alba	1	2.79	9
270	Stilt, Black-winged	Himantopus himantopus	1	15.15	41
253	Stint, Little	Calidris minuta	2	19.75	41
80	Stork, White	Ciconia ciconia	2	2.00	2		1
77	Stork, Woolly-necked	Ciconia episcopus	1	3.33	8
208	Swamphen, African	Porphyrio madagascariensis	1	2.00	3
99	Teal, Blue-billed	Anas hottentota	1	7.06	28
98	Teal, Cape	Anas capensis	1	1.50	2
97	Teal, Red-billed	Anas erythrorhyncha	2	7.40	38
291	Tern, Common	Sterna hirundo	2	2.50	3
299	Tern, Little	Sternula albifrons	1	1.00	1
305	Tern, Whiskered	Chlidonias hybrida	140	140.00	140	75	85
304	Tern, White-winged	Chlidonias leucopterus	1	66.20	169
274	Thick-knee, Water	Burhinus vermiculatus	1	3.17	10
685	Wagtail, African Pied	Motacilla aguimp	2	9.89	27
686	Wagtail, Cape	Motacilla capensis	5	21.57	60

Thursday 26 December 2024 04:07
FitzPatrick Institute of African Ornithology
Department of Biological Sciences - University of Cape Town

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Northern Treatment Works (29483100)

KwaZulu-Natal

Information