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A £150,000 operation to track down a lone stoat on a remote Orkney island has so far failed to catch its target.
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operation → see → target
The animal, believed to be a male, was first reported on Rousay in April after a visitor raised the alarm.
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visitor → believe → alarm
Its presence was confirmed the following month, triggering a major effort to locate and remove it before it could become established.
uncertain
it → confirm → it
Since then, hundreds of traps and dozens of cameras have been deployed across the island, alongside searches by specially trained detection dogs.
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hundreds → deploy → dogs
Despite the scale of the operation, the elusive stoat remains uncaught, with the most recent confirmed sighting recorded on camera on September 6.
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sighting → remain → September
The amount of money committed to the search has been revealed following a Freedom of Information request made by The Orcadian.
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amount → commit → Orcadian
NatureScot documents show that an additional £148,790 was approved in June to bolster the response on Rousay.
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148,790 → show → Rousay
The funding was requested by the Orkney Native Wildlife Project (ONWP), which warned that the animal needed to be removed quickly to prevent it from establishing a population.
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animal → request → population
A lone stoat on the Orkney island of Rousay has evaded a £150,000 operation to capture it, despite 229 traps, 59 cameras and specially trained detection dogs being deployed since May
The additional £148,790 funding was approved by NatureScot after the Orkney Native Wildlife Project warned that the stoat needed to be removed before it could establish a population or spread to other stoat-free islands
Officials also highlighted the possibility that a breeding population on Rousay could provide a route for stoats to reach other islands where they have not yet spread.
uncertain
they → evade → islands
A total of 229 traps and 59 cameras have been positioned around the island since the search began.
The operation has also made use of detection dogs trained to identify stoat droppings and other evidence of their presence.
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operation → position → presence
People living on and visiting Rousay have meanwhile been encouraged to report any sightings or signs of the predator.
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People → live → predator
The additional funding has supported extra staff, including a dedicated trapper, as well as vehicles and specialist equipment.
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funding → support → trapper
Rousay had previously been considered free of stoats, which are an introduced species in Orkney rather than a native part of the Northern Isles' wildlife.
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which → consider → wildlife
Stoats were first discovered in Orkney in 2010, although exactly how they arrived remains uncertain.
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they → discover → 2010
One theory is that they were inadvertently transported in hay carried by ferry, while another suggests they may have been deliberately released to control rabbits.
uncertain
they → transport → rabbits
Their distribution had previously been concentrated on Orkney Mainland and the southern islands connected by the Churchill Barriers.
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distribution → concentrate → Barriers
The arrival of a stoat on Rousay is particularly concerning because the island is close enough to the mainland for the animals to swim across the intervening water.
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animals → swim → water
Stoats are an invasive species in Orkney and threaten native wildlife, including the Orkney vole and ground-nesting birds such as curlews, lapwings and oystercatchers.
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Stoats → threaten → curlews
Pictured is a dead stoat in a trap
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stoat → picture → trap
The wider £16 million eradication programme has killed more than 9,000 stoats since it began in 2019, but the Rousay animal remains uncaught
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animal → kill → 2019
Conservationists are also worried about the impact the predator could have on the island's native wildlife.
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predator → have → wildlife
Rousay is home to internationally important nesting populations of birds including curlews, lapwings and oystercatchers, all of which could be vulnerable to stoat predation.
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all → nest → predation
The Orkney vole is another species at risk, with the animal found nowhere else in the world outside the archipelago.
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animal → find → archipelago
The hunt for the Rousay stoat forms part of a much larger campaign to eradicate the species from Orkney.
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hunt → form → Orkney
The £16million Orkney Native Wildlife Project is being delivered by RSPB Scotland, NatureScot and Orkney Islands Council, to protect the islands' native wildlife.
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Project → deliver → wildlife
The programme has been running since 2019 and has already resulted in 9,039 stoats being killed.
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stoats → run → 2019
The project has previously indicated that the risk of animals swimming between islands should fall as the number of stoats on Orkney Mainland declines.
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number → indicate → Mainland
A spokesman for ONWP said: 'This was a short-term solution to ensure that Rousay was responded to in the most appropriate way.'
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Rousay → say → way
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