Introduction
The 120,000 hectare area northwest of Bourke is a historic feral pig breeding ground, favoured for its natural watercourses flowing from Queensland.
This wetland environment is critical to maintaining biodiversity and is surrounded by productive grazing country. Yantabulla Swamp hosts thousands of internationally protected migratory shorebirds as well as up to 50,000 waterbirds including many threatened species.
Greg Robertson and Christine Ferguson own one of the 11 properties that were involved in the feral pig control program. Their property, Kia Ora, covers a large area of the Yantabulla swamp, which is connected to the Cuttaburra Creek system.
Challenges
The challenge for Local Land Services and landholders was to reduce feral pig numbers in watercourses and swamps while reducing their impact on the environment and agricultural production.
Feral pigs in high numbers were:
- damaging and polluting watercourses
- killing native animals including breeding and nesting birds
- damaging vegetation and spreading weeds
- digging up pasture and reducing grazing capacity of livestock
- increasing the risk of transmitting serious disease.
Solution
The most effective solution for feral pig and pest control is a long-term plan that has multiple control techniques and has landholders working with their neighbours across the landscape.
Due to the area’s challenging terrain, targeted aerial control was the primary control method for these landholders, supported by ground-based efforts.
Local Land Services worked with landholders across 11 properties, including Kia Ora, to coordinate:
- aerial shooting programs
- on-ground shoots
- trapping and baiting.
Local Land Services biosecurity officers were on the ground in the region and provided landholders with the necessary support to tackle their feral pig problem, including:
- one-on-one customised advice for farmers
- provision of bait
- provision of equipment
- general coordination of shoots with engaging aerial shooting teams, gaining landholder permission, managing the field operations and following up activities.
The most recent aerial work was carried out in partnership with the Department of Primary Industries and Regional Development.
Outcomes
The feral pig population in the wetland has been drastically reduced by keeping on top of breeding cycles and applying a continued control effort over time.
Outcomes included:
- more than 15,000 feral pigs were culled over the 2-year period since the targeted control program began
- 4 broadscale aerial shoot operations resulted in a steady decrease in the number of feral pigs culled as the program progressed, with Local Land Services staff and landholders gaining control of the problem
- 58 feral cats and 21 foxes were controlled during the shoots.
Landholders and the natural environment are now benefitting with:
- improved wetland health and increased biodiversity
- increased livestock production through improved pastures and additional feed
- improved water quality
- less damage to vegetation and trees
- more birdlife spotted in the area including nesting chicks, black swans and brolgas.
"The increase in volume of vegetation across the landscape surprised us. This year we observed knee-high medics and swathes of Warrego summer grass and rat’s tail couch in our rested paddocks like we have never seen."
- Christine Ferguson
There have also been positive flow-on effects for landholders further south of the wetland, where fewer feral pigs have migrated.
Greg and Christine's property Kia Ora also now has the potential to generate biodiversity credits under the NSW Government’s Biodiversity Offsets Scheme.
“For the first time, we have observed black swan chicks. These would normally be eaten by pigs while still eggs in the nest. The number of brolgas has increased, as has the quantity and diversity of other birdlife.”
- Christine Ferguson
“Due to the abundance of vegetation across the property, we were able to leave a section of the Yantabulla swamp resting longer than normal to allow the vulnerable ground-nesting birds to raise their young without being impacted by cattle."
- Christine Ferguson
Ongoing work
There is always more work to be done and Local Land Services (LLS) will continue to work with landholders to further reduce the impacts of feral pigs on the natural environment. Pest animal control is not a once off and this success story demonstrates the benefits of neighbours continuing to work together in the longer term.
How to get involved
To learn more about how LLS can help you with your pest animal management, call 1300 795 299 and ask to speak with your local biosecurity officer.
Feral Pig and Pest Program 2024-25
Learn more about what's being done for the Feral Pig and Pest Program and get involved.
Understanding General Biosecurity Duty
Learn more about your general biosecurity duty and what that entails.
Feral Pig and Pest Impacts Survey
Tell us about the impact feral pigs and pests on your property. Help LLS manage the problem.
More success stories
Contact Local Land Services NSW
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