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ABC News
an hour ago
- ABC News
Compass: S39 DOBBY
ABC iview Home Watch all your favourite ABC programs on ABC iview. More from ABC We acknowledge Aboriginal and Torres Strait Islander peoples as the First Australians and Traditional Custodians of the lands where we live, learn and work.
ABC News
an hour ago
- ABC News
Barn-owl project reducing farmers' reliance on poison to manage rats and mice
With a review into the risks of rodent bait in Australia about to be released, an award-winning initiative is using barn owls as a natural alternative to control rats and mice on farms. Wildlife organisations have called for a ban on second-generation anticoagulant rodenticides due to concerns that they kill and harm wildlife that eat baits or poisoned rodents. Studies here and overseas show some rats and mice are developing genetic resistance to poisonous baits, reducing their effectiveness while potentially increasing their use. But a pilot project in the Northern Rivers, New South Wales, is offering farmers hope of significantly reducing rat numbers in macadamia orchards. The Owls Eat Rats initiative has been in the works for a decade, with the pilot project launched at Banyula, a regenerative farm at Clunes, about 30 kilometres from Byron Bay, two years ago. It involved the installation of hunting roosts and barn owl nesting boxes, addressing Australia's wildlife accommodation crisis caused by clearing trees with hollows that take up to 150 years to form. Founder Alastair Duncan said it took time and effort to establish barn owl colonies, but the impact on rodent control had been so promising that three neighbouring farms had signed up. "They [owls] move in, they breed and they hunt and each breeding event takes about 1,000 rats out of the system," Mr Duncan said. "Farmers don't necessarily want to use poison; it's just that they don't have alternatives. "So when they see something that's working, they jump on board pretty quick." At Banyula, 70 nest boxes — including 12 for owls — span across the property, which has 7,500 macadamia trees and 75 hectares of new plantings of koala habitat and rainforest. Success is monitored by tracking nut damage in the orchards using trail cameras, physically inspecting nest boxes, and examining owl pellets — the regurgitated fur, bones, and feathers the birds cannot digest. "We're finding that 90 per cent [of pellets] is rats and the rest is house mice, which are a really significant pest in the agriculture industry," Mr Duncan said. Wildlife Health Australia notes increasing reports of toxicities associated with rodenticide exposure in Australian wildlife, including birds, mammals, reptiles and amphibians, and further work is needed to better understand and manage the risks. Mr Duncan said secondary rodenticides build up in predators' bodies every time they eat a poisoned rodent, affecting their hunting, breeding and survival. As opposed to the days it can take for rodents to bleed to death internally after consuming bait, barn owls are fast and efficient killers. Banyula director Matthew Bleakley said owls had allowed them to reduce rodenticide use, target applications and choose less harmful baits. Late last month, Owls Eat Rats was awarded $50,000 by Taronga Zoo's Hatch accelerator program, which helps ecopreneurs tackle serious environmental and conservation challenges. Mr Duncan said the grant would help fund academic research and further his goal of mainstreaming nature-based pest control. Mr Duncan planned to replicate the project on the Sunshine Coast, where he lives, and was working with the Australian Macadamia Society. "It's a massive boost for us," he said. Wildbnb Wildlife Habitat director David Brook spent a decade perfecting barn owl nesting boxes, prioritising comfort and safety. Each pair of owls needs at least three nesting boxes over a small area to provide variety in their habitat. "We realised that the owls were not only breeding back-to-back — so we had four different clutches of owlets in a 12-month period — but they were bringing in 10 to 15 rats a night to feed the owlets," Mr Brook said. "The next stage of this project is to rigorously investigate the idea. "We're bringing in university and industry partners and looking at just how replicable it is across other landscapes and other industries," Mr Brook said. Mr Brook said wildlife rodenticide poisoning and potentially associated road traffic strikes required more examination. "We're now starting to work with the local wildlife hospitals and with Taronga Zoo and universities to better evaluate the impact of toxic rodenticides on the barn owls," he said. Agricultural chemicals are regulated by the Australian Pesticides and Veterinary Medicines Authority (APVMA). The APVMA is reviewing anticoagulant rodenticides warfarin, coumatetralyl, diphacinone, brodifacoum, bromadiolone, difenacoum, difethialone and flocoumafen, based on public health, worker safety and environmental safety. In a statement, an APVMA spokesperson said it was "preparing the documents for our proposed regulatory decision for the anticoagulant rodenticides review". "We expect to publish this in the near future, which will start a three-month public consultation period," the spokesperson said.
ABC News
2 hours ago
- ABC News
US completes deportation of eight men to South Sudan after weeks of legal wrangling
The US has deported to South Sudan eight migrants who had been held for more than a month at a military base in Djibouti, according to the Department of Homeland Security. The deportation comes after the migrants lost a last-ditch effort to halt their transfer to the politically unstable country. The men were deported on Friday, the July 4 Independence Day holiday in the US, Assistant Secretary Tricia McLaughlin said in a press release. "This was a win for the rule of law, safety and security of the American people," Ms McLaughlin said. An aircraft carrying US deportees arrived in South Sudan on Saturday, two officials working at Juba airport said. An airport staffer speaking on condition of anonymity told Reuters he had seen a document showing that the aircraft "arrived this morning at 6am". An immigration official also said the deportees had arrived in the country but shared no further details, referring all questions to the National Security Service intelligence agency. Earlier, a South Sudan government source said US officials had been at the airport awaiting the migrants' arrival. The fate of the migrants had become a flashpoint in the fight over the legality of the Trump administration's campaign to deter immigration through high-profile deportations to so-called "third countries", where migrants say they face safety concerns, which has already gone from lower courts to the Supreme Court twice. South Sudan has long been dangerous even for local residents. The US State Department advises citizens not to travel there due to violent crime and armed conflict. Australia's Smart Traveller advises Australians not to travel to South Sudan, "due to the dangerous security situation and the threat of violence and armed conflict. The security situation is volatile and could deteriorate rapidly with little or no warning". The United Nations has said the African country's political crisis could reignite a brutal civil war that ended in 2018. The eight men, who according to their lawyers are from Cuba, Laos, Mexico, Myanmar, Sudan and Vietnam, had argued their deportations to South Sudan would violate the US constitution, which prohibits cruel and unusual punishment. They had been held in US custody in Djibouti since a federal judge in Boston in May blocked the Trump administration from immediately moving them to South Sudan over due process concerns. Following additional litigation, the Supreme Court on Thursday sided with the administration, lifting those limits. Two courts considered requests from the migrants' lawyers on an emergency basis on Friday, when courts are otherwise closed for the holiday, but ultimately US District Judge Brian Murphy in Boston said the Supreme Court order required him to deny their bid, clearing the way for their deportation. The location of the men in South Sudan after their arrival was not immediately known. Reuters
