Liberation and spread of stoats (Mustela erminea) and weasels (M. nivalis) in New Zealand, 1883–1920

This paper reviews the timing and spread of weasels and stoats across the South and North Islands of New Zealand during the late nineteenth century, entirely from historical records. The flavour of the debates and the assumptions that led to the commissioning of private and government shipments of these animals are best appreciated from the original documents.