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  4. Successful boom for the Gwydir Wetlands

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Successful boom for the Gwydir Wetlands

  • Media release
  • CEWO
30 June 2022

Large natural flooding from rain events over November and December 2021 added to environmental watering in past years has resulted in boom times in the Gwydir Wetlands.

Commonwealth Environmental Water Office (CEWO) Local Engagement Officer Jane Humphries said an exciting result has been the large colonies of waterbirds breeding successfully throughout summer and early autumn.

“In late December New South Wales aerial surveys identified thousands of nests of several species including Royal spoonbills, Egrets, Nankeen night herons, Glossy ibis and Straw-necked ibis.

“This was the first large-scale colonial nesting waterbird breeding event since 2012 and we’re thrilled to see the next generation of tens of thousands of young waterbirds successfully fledged in the Gwydir wetlands.

“While we wait for final nest numbers from scientific monitoring, the estimated numbers from on-ground surveys are around 30,000 across seven colony areas.

“Water for the environment was used to stop water levels under the nests in the wetlands from falling too low too quickly and drying out too soon. This also reduced the risk of breeding birds abandoning their nests or chicks. The right level of water also stops predation from pigs and foxes.

“Following on the initial work of mother nature, environmental water deliveries inundated core breeding and feeding areas in watercourse country west of Moree ensuring that plenty of food sources were also available,” she said.

Collaborating with state agency partners and service providers to assist with monitoring of waterbirds, frogs, vegetation and water levels in the wetlands, Jane Humphries said seeing the wetlands come alive with waterbirds, along with many other animals over summer was such a positive outcome for the local environment.

“It had mostly been a very dry period after 2012 until finally some better rainfall and flows started in 2020. The 2021 year was a much wetter year and included two large floods in the Watercourse country west from Moree,” she said.

The CEWO and NSW Government’s Water for the Environment program team members gain advice about delivering environmental water from a range of important stakeholders including the Gwydir Environmental Water Advisory Group (EWAG), NSW National Parks and Wildlife Service (NPWS), local Gomeroi/Kamilaroi Traditional Owners, irrigators, monitoring service providers, landholders and managers and the local community.

Jane Humphries emphasised that while deliveries of water for the environment have been vital in helping to support the rivers and wetlands, at various times, it is the larger natural inflows that create the bigger boom times.

For further information see the Gwydir Valley updates:

Water for the environment supports bird breeding in the Gwydir Wetlands – June 2022

Contact the CEWO Local Engagement Officer Jane Humphries 0437 141 495.

Tamara from environmental consultancy 2rog and Keno from National Parks and Wildlife Service ready for the walk into one of the waterbird colony sites to help undertake the last survey for this breeding event. (Photo taken in late March 2022; Note well: Photo taken during approved scientific monitoring).
Tamara from environmental consultancy 2rog and Keno from National Parks and Wildlife Service ready for the walk into one of the waterbird colony sites to help undertake the last survey for this breeding event. (Photo taken in late March 2022; Note well: Photo taken during approved scientific monitoring).
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Last updated: 30 June 2022

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We acknowledge the Traditional Owners of country throughout Australia and recognise their continuing connection to land, waters and culture. We pay our respects to their Elders past, present and emerging.