That's not quite as bad as it sounds - it's a native rat making a a reappearance, in a big enough way to be called "an eruption":
Meanwhile, on the domestic front, there seems to be no doubt that at least one rat has taken up residence in the floor space between the downstairs living area and the upstairs level. I can hear it scurrying around while I blog late at night.The long-haired rat normally lives on isolated black soil plains in the Barkly Tableland of the Northern Territory and in western Queensland.
But it is taking advantage of high rainfall across the region to migrate en masse.
The rats have been sighted in Alice Springs for the first time in 25 years, and has also been seen in the remote community of Aputula, 250 kilometres further south.
"It really is a huge event and is pretty much down to that run of consecutive good, high rainfall seasons," said Peter McDonald, acting scientist with Northern Territory Biodiversity Conservation.
Mr McDonald says the rat migration is a unique event.
"It is unusual in the rodent world but Rattus villosissimus are unique in that way and they are pretty famous for their eruptions," he said.
"Probably the only similar expansion by a rodent is seen in the lemmings in the northern hemisphere with their eruptions.
I guess it got there via the roof, where rats are an annual problem, and down through the walls. Maybe it moves between the roof and the floorspace daily: that would at least give me a chance of baiting it via the roof.
I just realised tonight that I can probably access the floorspace for baiting purposes by removing one of the kitchen downlights, and I did hear it scurrying a bit close to that area tonight. But if it dies in the floorspace, I'll have no hope of removing the dead body, and we know from experience that dead rat smell permeates ceiling plasterboard quite well.
I think we need a reliable rodent repellent that can be sprayed in ceiling spaces. That might be the only hope of keeping them away.
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