Human-wildlife conflicts involving protected predators are a major social and environmental problem worldwide. A critical aspect in such conflicts is the role of state institutions regarding predators' conservation, and how this is construed by affected local populations. These interpretations are frequently embodied in conspiratorial rumours, sharing some common traits related to wild and domestic categories, spatial ordering and power relations. In southern Chile, a one-year, multi-sited ethnographic study of human-animal relations in and adjacent to protected areas was undertaken, foregrounding conspiratorial (...) rumours concerning protected predators. Through an analysis of this study and related international cases, this article argues that the uncritical dismissal of rumours and the categories used to interpret such conflicts have detrimental impacts on the conservation of wild predators. Such rumours should be understood as significant comment devices within human-animal relations and the power dynamics that frame human groups affected by them. (shrink)