Key information
This project gathered data to better understand the movement of wild dogs and feral pigs around the Western region.
Data findings included:
- wild dogs had an average home range of 630 km2, but had activity areas up to 1,300 km2
- large distances were covered by the collared dogs, with an average of 15 km per day
- feral pigs had a home range average of 91.7 km2. Sows with an average home range of 40.6 km2 and boars 121.5 km2.
This project collected valuable data on pest species in order to improve the effectiveness of pest animal control programs.
Project background
The Western Tracks Collaring project was a collaborative, community supported research project. The aim was improving the management of wild dogs and feral pigs around the Western Local Land Services region.
Project delivery
Through this project, wild dogs and feral pigs were trapped and fitted with GPS collars before being released. The collared animals' movements were monitored after release during regular control activities in the region.
Data gathered through this process provided information on:
- the movements and interactions of feral pigs and wild dogs with their landscape
- how feral pigs and wild dogs use the landscape at different times of the year and during control activities
- to assess if the control of wild dogs can be better targeted to avoid dog bait uptake by feral pigs
- the effectiveness of routine control programs.
Camera traps (also called trail cameras) were deployed around the Western region to monitor wild dogs. This also allowed researchers to assess what other species were present in the landscape and how they responded to pests and pest control programs.
Project timeline
Consultation
In mid-2019, participants at pest animal forums in Broken Hill and Tilpa voted to endorse the project. This decision followed extensive consultation with landholders and other stakeholders.
On-ground work
On-ground project work commenced in 2020 and was undertaken until 2022.
Findings
In late 2023, the project team presented their findings to landholders at three community events in the Western region.
Project outcomes
Through the project, a total of 11 wild dogs and 42 feral pigs were collared, released and monitored.
The average weight of the collared female wild dogs was 15.6 kg and males 19.2 kg.
From the collared wild dogs, it was found that 630 km2 is an average home range in their landscape, but animals can have activity areas up to 1,300 km2. Large distances were covered by the collared dogs, with an average of 15 km per day.
These figures are significantly greater than that of animals on the east coast. These factors undoubtedly show the importance of coordinated and strategic broadscale control across the landscape.
The change in seasons didn’t drastically change the movement patterns. It was found that these animals were most active during the early morning and evening hours. The exception being summer, where the most activity was during the night.
A major finding was that the collared wild dogs GPS signals placed them twice as likely to be near a drainage depression than anywhere else in the landscape. This has showed that the collared animals preferred to travel the landscape in these depressions which possess either cover, shade, softer surface to travel across or a mix of all these factors.
While there was minimal data in relation to the locations of bait placements, the data that was collected showed an interaction between the baits placed by the landholder and a collared dog. This data was collected using the control feature within FeralScan.
One collared dog was recorded crossing over the bait trail numerous times, even visiting exact bait locations for three days before it finally succumbed to a bait. This data not only proved that wild dogs do take baits but also showed why it is so important to have baits available in the landscape for pest animals to take, particularly since they aren’t always confident to take a bait on first inspection.
The collared dogs also showed that wild dogs that aren’t in a pack together can utilise the same space within a landscape, just at a different time. This is helpful to understand as quite often there isn’t one pest animal to target, but multiples.
The 42 collared pigs in this project which focused on landscapes along the Paroo River and associated flood-out areas had a home range average of 91.7 km2. Sows had an average home range of 40.6 km2 and boars 121.5 km2 and where they moved around the landscape depended on the season.
The GPS collars recorded the pigs’ location every half hour. The space between GPS points was greater in winter than it was in summer, which shows the animals heavily reliance on water and shade resources.
In winter the days are cooler, which allowed the pigs more ideal weather to travel about the landscape in search of food. On average, pigs travelled 5.27 km per day with only a marginal difference between boars (6 km) and sows (4.1 km).
The collaring data provided insight into the animal's home range and core home ranges. An animal's core home range provides an opportunity to locate your control efforts in an area where you are more likely to achieve good results. The average core home range was 18.8 km2.
Understanding the features of a home and core home range assists landholders across the region to identify similar areas on their property and undertake control activities.
Funding and partnerships
The project was backed by private and public landholders, pest animal management and Landcare groups, Western Local Land Services, NSW Department of Primary Industries, NSW National Parks and Wildlife Service, NSW Farmers Western Wild Dog Coordinator and Southern Queensland Landscapes.
This project was funded through the Australian Government’s Communities Combatting Pest Animals & Weeds During Drought program, and the NSW Department of Primary Industries Invasive Species Research program.

For further information about the Western Tracks collaring project, contact Western Local Land Services via admin.western@lls.nsw.gov.au.
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