Mink (Mustela vision). Mink are predatory mustelids that feed on a variety of prey including amphibians, fish, insects and birds. They have been introduced to mainland Europe and the UK, where they are blamed for the decline of a number of species including wildfowl in Europe and the water vole in the UK. Mink inhabit burrows in river banks. They are trapped and farmed for their fur. Photographed in the UK.