Leo the Rescue Dog Helping Find Koalas in Queensland

Once a collarless stray with an uncertain future roaming the suburbs, the dog now called Leo is a member of a specialist conservation team that searches central Queensland forests and farmland for evidence of koalas. His journey demonstrates how an unwanted pet can become a vital ally on the frontline for threatened species.

From shelter dog to conservation recruit

Leo’s circumstances changed when he was six months old and a ranger discovered him wandering by himself. He was brought to a nearby shelter, one more lively black-and-white young dog in a country already full of working-breed crosses needing homes.

At about that time, veterinary nurse and conservation advocate Jacqui Summers was searching for another detection dog. She required a partner with endurance, curiosity and an almost obsessive enthusiasm for play - the precise sort of dog that can become bored and unwanted in a suburban garden.

When Jacqui first encountered Leo, his drive and concentration were immediately apparent. He locked onto toys, paid no attention to distractions and recovered fast when faced with unfamiliar or unusual settings. Those qualities could make him challenging as a pet, but they were perfectly suited to a canine role involving long searches through heat, dust and tall grass.

Leo moved from concrete kennel runs to wide bushland, becoming a working dog with a purpose: help researchers find koalas.

After his shelter adoption, Leo became part of Jacqui’s Holy Scat detection dog team, joining two seasoned dogs, Artemis and Skye. Together, they make up Queensland’s only dedicated conservation dog unit concentrating on koala work.

The team behind “holy scat”

Holy Scat is founded on one straightforward principle: wildlife cannot be protected until its location is known. In landscapes that have been extensively altered, achieving that is far more difficult than it may seem. Koalas can occupy isolated patches of trees, travel after dark and remain high in the canopy.

Rather than trying to spot the animals, Jacqui’s dogs are trained to locate their evidence: droppings, also known as scat. For koalas, these tiny pellet-shaped droppings can be nearly impossible to see on the forest floor.

By following scent, the dogs can find scat in areas where people would likely pass without noticing it. Researchers can then chart koala presence over broad regions and monitor how it changes over time.

Working dogs like Leo turn a tedious needle-in-a-haystack search into a focused mission guided by their nose.

Queensland’s first dedicated koala detection unit

Although detection dogs are already in use across several Australian states, Queensland has been slower to take up the approach. That is beginning to change. Holy Scat now works alongside CQUniversity and the national koala monitoring program to survey central Queensland, where koalas face pressure from land clearing, heatwaves and disease.

For researchers, access to a trained dog team can transform what can be achieved on short field visits. Rather than examining only a limited number of trees, they can search whole paddocks, creek lines and broken bush corridors.

• Dogs locate koala scat concealed beneath grass and leaf litter.
• Scientists verify the scat and log GPS coordinates.
• The data is added to national databases that monitor koala populations.
• Findings inform habitat protection, corridors and later surveys.

How a nose beats satellite images

Modern koala research blends advanced monitoring technology with traditional work in the field. Drones, acoustic recorders and satellite imagery can identify habitat and possible koala hotspots. However, each method still requires ground truth: confirmation that koalas genuinely use a location.

That is where Leo and his fellow dogs play their part. Through repeated training and rewards, they learn to signal the smell of koala scat while disregarding droppings from other wildlife.

In thick grass, tangled leaf litter and uneven ground, a koala dropping can vanish from human sight long before the scent fades for a trained dog.

Researchers say the contrast in workload is substantial. A human surveyor could spend an hour searching a small area, repeatedly bending over with their eyes fixed on the ground. By monitoring the wind, a dog can cover the same area much faster, following faint odours drifting between the trees.

What training a conservation dog looks like

Leo began his training with basic scent-based games. Trainers linked the odour of koala scat to his favourite food or toy. Each time he found the correct location or container, he received an instant reward. Gradually, the challenges became harder, moving from controlled indoor exercises into bushland outdoors.

Before a dog is ready for fieldwork, it must have:

Skill	What it means in practice
Scent focus	Disregard the smells of livestock and other wildlife in order to focus on koala scat.
Stamina	Continue working enthusiastically for hours in drizzle or heat.
Clear signals	Give a reliable response, such as pawing or sitting, when it makes a find.
Obedience	Immediately follow recall and stop instructions near roads, cliffs or stock.

The dogs use GPS collars and, where required, cooling vests. Frequent rest periods and health assessments protect their welfare. Jacqui’s veterinary nursing experience provides an added level of supervision, with close attention paid to hydration, paws and joints.

Why koala poop matters for policy

In Queensland, koalas confront numerous dangers, including habitat loss, vehicle strikes and chlamydia infections that may lead to blindness and infertility. Governments and landholders require dependable information when deciding on restoration schemes, housing developments and logging restrictions.

Scat surveys address fundamental questions: Are koalas there? How extensively are they distributed? Are numbers stabilising or declining? Detection dogs can provide those answers more rapidly and with stronger confidence, potentially shaping where scarce conservation funding is directed.

Each tiny pile of scat logged by Leo’s team becomes another data point in national models predicting the future of koala populations.

If patterns reveal a steep fall in detections within one area, it may prompt a more detailed investigation into recent land clearing, heat stress incidents or disease outbreaks.

Rescue dogs as conservation partners

Leo’s experience also reflects an increasing practice: recruiting prospective working dogs from rescue centres instead of from purpose-bred litters. Energetic crosses involving cattle dogs, kelpies and border collies can find urban homes difficult, yet excel at search tasks.

For shelters, partnerships with detection programmes provide another option for dogs that might otherwise wait years for the “right” adopter. For conservation organisations, the arrangement supplies a consistent source of possible recruits without promoting further large-scale breeding.

This approach requires thorough assessment. Fieldwork is not suitable for every rescue dog. Some are unsettled by loud sounds, while others become anxious around livestock or strangers. Instead of seeking perfection, trainers look for a combination of resilience, curiosity and toy drive.

What “scat” means and why scientists chase it

“Scat” is simply the term for animal droppings collected for scientific research. For many animals, gathering scat is easier and causes less stress than taking tissue or blood samples. Researchers can obtain DNA, hormone information and dietary evidence from a single pellet.

For koalas, analysing scat can identify:

• The individual or family group that used a location.
• Indications of illnesses including chlamydia.
• Dietary quality through leaf fragments and chemical markers.
• Contact with environmental contaminants, such as pesticides.

Detection dogs function as mobile sampling units. Teams can work on the ground with little disturbance instead of trapping or tagging koalas, both of which involve risk and stress. This method is well suited to sensitive sites and creates fewer issues for ethics approvals.

Where this approach could head next

The achievements of Leo and comparable dogs suggest several potential directions. Other threatened Australian species, including quolls and gliders, produce distinctive scat too. Some programmes already train dogs to detect rare reptiles, invasive plants and even fungal diseases affecting trees.

As extreme heat and fire events put wildlife under increasing strain, swift surveys using trained dogs could help identify survivors and direct habitat support or rescue efforts. Conservation planners are already trialling mixed teams in which a dog seeks koala scat in the morning before looking for invasive predators such as foxes in the afternoon.

For people who live close to koala habitat, Leo’s story also offers a practical message. Reporting wild koala sightings, joining community tree-planting days and supporting local koala care groups all contribute to the same aim as detection teams: retaining enough healthy trees and connected habitat for the animals Leo now works so hard to locate.

For shelters, meanwhile, his transformation from an unwanted stray into a skilled wildlife worker shows that the restless energy seen in a kennel run may belong to a specialist nose waiting for a role that finally fits.