Species conservation activities are gaining more attention in the context of environmental degradation. This article proposes to tackle different semiotic aspects of reintroduction as one possible way of furthering species conservation. More specifically, we aim to bring forth the strength of ecosemiotic perspective when dealing with such a complex matter with many different human and non-human subjects. We concentrate on animal agency, search and function tone, semiotic fitting and changes in umwelten when analysing the reintroduction process from the perspective of (...) the animal. When considering the locals’ perspective, we take into account the appeal and cultural placement of the species, as well as human and non-human umwelt overlap when it comes to resources. As our case study we use the European mink (Mustela lutreola) and its reintroduction to the island of Hiiumaa and planned reintroduction to the island of Saaremaa in Estonia. By employing semiotic analysis, we discover that reintroduced animals need to exhibit innovation and plasticity to establish novel semiotic relations but also restore relations characteristic to the historical environments of the species. We argue that human views and expectations towards the species and (re)introduction efforts account for animals’ appearance and agency. Additionally, contrast with other wild species, the perceived overlap of human and non-human umwelten, and broader conservation discourse are decisive for the formation of interspecific relations in situ. Thus, ecosemiotcs proves to be a valuable research platform for an analysis of conservation practices that targets both, sociocultural context and animal umwelten. (shrink)