Threat of stoat introduction on non-linked isles

RSPB Scotland is calling for vigilance as imported straw may inadvertently carry stoats to previously unaffected isles.

The dire spring and summer has left farmers across the county with little choice but to import straw on an unusual scale. Straw loads can transport stoats and the need to import exceptional amounts this year could see the species unintentionally reach the non-linked isles.

Stoats are an invasive species in Orkney. Their presence on the Mainland and the linked south isles already threatens native wildlife like hen harriers, short-eared owls and curlews.

Islanders are encouraged to report any stoat sightings on non-linked isles to Scottish Natural Heritage (SNH), which is leading on developing a plan of action to tackle the problem.

Christine Skene of SNH said: “We’ve had many reports of stoats this year from the Mainland and South-linked isles, but none as yet from any of the non-connected North or South Isles. The need to import straw this year could provide an opportunity for this non-native species to spread further and reach the outer isles. We would ask everyone to be aware of this, keep a look out for stoats, and please report any sightings to SNH immediately.”

Stoats were first detected in Orkney in 2010, and have since established themselves across the Mainland and the linked south isles. They are opportunistic predators, feeding on small mammals like rodents and rabbits but also birds, chicks and eggs.

Alison Phillip, RSPB Scotland Conservation Officer in Orkney, said: “The rapid spread of stoats is one of the most serious threats that Orkney’s wildlife faces. In the next few years stoats could have a devastating impact on breeding waders like curlews, lapwings and redshanks, birds that are an intrinsic part of the Orkney landscape – the very sound of spring could change. Stoats also prey heavily on Orkney voles, which in turn affects the fortunes of birds of prey like hen harriers and short-eared owls.”

Stoat sightings can be reported to SNH on 01856 875302 or by email to NORTH@snh.gov.uk.