|Central coordinates||144o 1.59' East 35o 47.29' South|
|IBA criteria||A1, A4i|
|Altitude||75 - 80m|
|Year of IBA assessment||2008|
Summary This extensive series of wetlands supports populations of the endangered Australasian Bittern and the near threatened Blue-billed Duck. The wetlands have supported more than 1% of the world populations of Freckled Duck, Straw-necked Ibis, Black-fronted Dotterel, Banded Stilt and Red-necked Avocet but only the last two are regular in these numbers.
Site description The North Victorian Wetlands IBA is located approximately 300 km north west of Melbourne and are part of an extensive wetland system of over 100 wetlands in the Loddon-Murray Region. The IBA is defined as the series of individual wetlands which have supported significant numbers of birds (defined here as at least 0.25% of the world population of a species for which the IBA has supported 1% of the world population) in recent years (defined here as since the last ‘wet’ year in 1993): Round Lake (Wildlife Reserve; Blue-billed Duck), Middle Lake (Water Supply Reserve; Grey Teal and nesting ibis), Reedy Lake (Water Supply Reserve; Straw-necked Ibis), Lake Bael Bael (Red-necked Avocet), Lake Cullen (Water Supply Reserve; many species), Lake Tutchewop (Salinity Disposal Reserve; Red-necked Avocet, Banded Stilt), Lake Meran (= Lake Meering; Red-necked Avocet), Lake Kelly (Salinity Disposal Reserve; Banded Stilt), Lake Murphy (Freckled Duck), Hird Swamp (east and west; 344 ha wildlife reserve; Australasian Bittern, Australian Painted Snipe), Johnsons Swamp (411 ha wildife reserve; Australasian Bittern) and Kow Swamp (2724 ha irrigation storage; Australasian Bittern). The majority of the lakes are regulated and linked to the irrigation system. Those regulated wetlands which receive Environmental Water Allocations (Lake Cullen, Hird and Johnsons Swamps) can also receive floodwaters that are manipulated through the irrigation system and delivered via the channel system. Many wetlands are significantly affected by soil salinity through land clearance and irrigation practices which have resulted in raised groundwater levels. Changes in hydrology have resulted in most of the irrigated land being underlain by highly saline watertables. Introduced Eurasian Carp have greatly reduced numbers of waterbirds in many permanent wetlands. All except Round and Kow are in the 9419 ha Ramsar site which covers 22 wetlands; the additional wetlands which are excluded from the IBA because they either never supported significant numbers of birds or because they have declined in value since listing because of reduced freshwater inflows and/or increased salinity are: First Marsh, Second Marsh, Third Marsh, Stevenson Swamp (State Wildlife Reserves), Third Lake, Little Lake Charm, Lake Charm, Racecourse Lake and Kangaroo Lake (Water Supply Reserves), Lake William (Salinity Disposal Reserve), Tragowel Swamp and another three unnamed wetlands on Crown Land. Historically, the Avoca floodway, other floodplains and other small wetlands were of global significance for birds, including Australian Painted Snipe, but these areas have not been included in the IBA as they have flooded very irregularly, and with decreasing regularity, in recent years, with the last ‘wet’ year in 1993. Total counts of waterbirds across much of the Ramsar site were regularly over 20,000 in the ‘wet’ years, with peaks of 299,000 in 1987 and 107,000 in 1993, but no higher than 22,000 (in 2002) subsequently (DSE 2006). Bird counts before 1994 are listed in the notes above but not in the maximum figures for the species. The declining value of these wetlands has been summarised by Corrick and Cowling (1975), Lugg (1989) and DSE (2006). Many wetlands currently excluded from the IBA may qualify for inclusion in times of good rainfall, including Lake Charm, Golf Course Lake, Lake Elizabeth, Lake Gilmour, Lake Leaghur, Lake William (historical counts of up to 3000 Banded Stilt [DEWHA 2008]), Lake Yando, Lake Boort (with recent records of Australasian Bittern and Blue-billed Ducks; S. Starr in litt. 2007), First, Second and Third Marshes (23,479 waterbirds in 1985; DSE 2006), Stevenson Swamp, Back Swamp, Town Swamp, Cemetery Swamp, Fosters Swamp, and the saline Lake William (one old high count of Banded Stilt; 7929 waterbirds in 1987; DSE 2006).
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Freckled Duck Stictonetta naevosa||non-breeding||1994-2007||250 individuals||-||A4i||Least Concern|
|Blue-billed Duck Oxyura australis||unknown||1994-2007||300 individuals||good||A1, A4i||Near Threatened|
|Straw-necked Ibis Threskiornis spinicollis||resident||1994-2007||10,000 individuals||-||A4i||Least Concern|
|Australasian Bittern Botaurus poiciloptilus||resident||1994-2007||10 individuals||good||A1||Endangered|
|Banded Stilt Cladorhynchus leucocephalus||non-breeding||1994-2007||7,000 individuals||-||A4i||Least Concern|
|Red-necked Avocet Recurvirostra novaehollandiae||non-breeding||1994-2007||4,000 individuals||-||A4i||Least Concern|
|Black-fronted Dotterel Elseyornis melanops||unknown||1994-2007||170 individuals||-||A4i||Least Concern|
|Protected area||Designation||Area (ha)||Relationship with IBA||Overlap with IBA (ha)|
|Cullens Lake||Natural Features Reserve - Wildlife Reserve (hunting)||719||protected area overlaps with site||586|
|Hird Swamp||Natural Features Reserve - Wildlife Reserve (hunting)||433||protected area contained by site||433|
|Johnson Swamp||Natural Features Reserve - Wildlife Reserve (hunting)||467||protected area contained by site||467|
|Koorangie (The Marshes & Avoca Floodway)||Natural Features Reserve - Wildlife Reserve (hunting)||3,256||protected area overlaps with site||462|
|Lake Murphy||Conservation Park||551||protected area overlaps with site||136|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Wetlands (inland)||Ephemeral; Freshwater lakes & pools; Permanent herbaceous swamps & bogs; Saline lakes||major|
Land ownership Victorian State government and managed by: Parks Victoria, Goulburn-Murray Water, the Department of Sustainability and Environment, the Shire of Gannawarra and Lower Murray Urban and Rural Water Authority.
|Land-use||Extent (% of site)|
|Notes: Duck hunting is permitted in some of the wetlands.|
|nature conservation and research||major|
|Notes: Hird and Johnsons Swamps are Wildlife Reserves.|
|Notes: The wetlands are used extensively for land and water based recreation activities including tourist driving/sightseeing, camping, picnicking, swimming, sailing, waterskiing, boating, fishing, hunting and nature study/appreciation.|
|Notes: Specific lakes are used for irrigation water storage and others for saline water and sewerage disposal.|
Protection status Several - see separate section.
Acknowledgements Chris Coleborn, Tom Lowe and Simon Starr kindly provided their personal knowledge of this system. Data and comments were provided by Richard Loyn at ARI and Janet Holmes at DSE; Rob Price at DSE; North Central CMA Wetlands Officer; Murray Rohde at DSE in Swan Hill.
References Corrick, A. H. and Cowling, S. J. (1975) A survey of the wetlands of Kerang. Victorian Fisheries and Wildlife paper, No. 5.
Department of Sustainability and Environment (2004) Kerang Wetlands Ramsar Site Strategic Management Plan. Melbourne: Department of Sustainability and Environment.
Department of Sustainability and Environment (2006) Description of the ecological character of the Kerang Lakes Ramsar Site. Melbourne: Department of Sustainability and Environment.
DEWHA (2008) A Directory of Important Wetlands in Australia. http://www.environment.gov.au/water/publications/environmental/wetlands/database/ accessed August 2008.
Lugg, A. (1989) Report to the Kerang Lakes Area Working Group. Report No. 4. Waterbirds of the wetlands of the Kerang Lakes area. Department of Conservation, Forests and Lands, Bendigo Region.
Robinson, D. (1984) Victorian Bird Report 1983. Bird Observers Club, Melbourne.
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Recommended citation BirdLife International (2014) Important Bird Areas factsheet: North Victorian Wetlands. Downloaded from http://www.birdlife.org on 31/07/2014
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