The RSPB Loch of Strathbeg reserve near Crimond is hosting a talk about water voles on Tuesday, February 18 at 7pm.
Sarah Atkinson, the Water Vole Conservation Officer based at the University of Aberdeen, said: "Ratty from 'Wind in the Willows' was a water vole, so a lot of people are familiar with this famous little rodent.
"Sadly, Ratty would find things rather tough nowadays, largely due to the introduced American mink. Water vole numbers have declined in many parts of Scotland because of mink and one of the things we'll be looking at in the talk is how people can help in our work to protect them".
The event is free to attend and there is no need to book. Refreshments will be available during the evening.
The reserve is reached by following the brown 'nature reserve' sign from the A90 in Crimond. The Visitor Centre is open daily from 9am until dusk, entrance is free.