"If you want to help us in the work of removing the stone martens from the area Sölvesborg, Bromölla and eastern Kristianstad, feel free to go up to your attic and see if there are signs of stone martens there," says PA Åhlén, project manager at the association, in a press release.

Signs of visits can include damaged house insulation and droppings.

Stenmården differs from the Swedish forest marten by a white spot on the neck.

In Sweden, the first confirmed find of a stone marten was made in Bromölla 2018. It is believed to have arrived here in the form of a pregnant female who is suspected of having come stealing with a truck.

Recently, several finds of the invasive species have been made - so far, almost 30 stone martens have been killed in southern Sweden.

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In the clip, Per-Arne Åhlén, project manager for invasive species at Jägareförbundet, talks about the stone marten, which is a new mammal species in Sweden.

Photo: Towe Olsson / SVT and Martin Mecnarowski / Shutterstock