The Australian bushfires have left a trail of devastation in their wake, not just for the country's wildlife, but also for its rich biodiversity and ecosystems that are interconnected with the UK. The endangered pink cockatoo, or Major Mitchell's cockatoo, is one such species whose survival hangs precariously due to the unrelenting bushfires in Victoria. Wyperfeld National Park, a vital breeding ground for these birds, has been ravaged by two major fire events over the past 12 years, decimating their primary habitat and food sources.
Ecologist Dr Victor Hurley, who has dedicated decades to monitoring the species' population, paints a dire picture of the impact of these fires. The cockatoos rely on ancient slender cypress pines (Callitris gracilis) for their breeding hollows, requiring trees that are at least 85 years old and ideally over 125 years to accommodate their expanding families. These specific old-growth pines were already in short supply due to historical land clearing and a significant fire in 2014.
The 2014 fires swept through 60% of the 'pine plains' area within Wyperfeld, destroying an estimated 97% of the known cavity-bearing trees in the affected zone. More recently, devastating bushfires in January further torched 70% of the cockatoo's core habitat in the park. This latest inferno contributed to over 440,000 hectares of land burned across Victoria, an area larger than that affected by the infamous Black Saturday fires, according to the state government.
Dr Hurley warns that the two fires have left barely a handful of the previously 178 large, old native pines within the burnt area of Wyperfeld, which is the largest breeding site for the cockatoos in Victoria. The loss of these specific trees is particularly critical as the cockatoos are described as 'wimpier' in the competition for available hollows, often losing out to more assertive galahs or feral European honeybees.
In an effort to mitigate the habitat loss, Dr Hurley and a dedicated group of volunteers, known as the Mallee Woodpeckers, have been working tirelessly to create artificial hollows. These include hollowed-out logs strapped to repurposed poles and more modern designs carved into the trunks of dead but still standing trees, even those charred by the fires. Their efforts aim to provide crucial nesting sites as the natural habitat struggles to recover.