Biocultural and indigenous approaches to conservation, such as the sacred forests of India, are increasingly being recognized and valued. At these sites, the ecological aspects as well as the local community management and cultural significance of the landscape contribute to conservation success. From 2012 to 2015, we investigated five sacred forests in western Odisha (India) that varied in size from 1 to 1000 ha. Through interviews with 81 residents, we explored the types of groves, their use and management approaches. We investigated levels of grove disturbance and plant use with botanical survey methods. Some groves experience pressures from annual pilgrimage visitors, and we documented the relative impacts of pilgrims and other activities using ethnographic methods. Community participation or management by the Forest Department alone has not been completely effective in conserving these sacred natural sites; however, collaborative work can contribute to successful conservation. Continued community involvement is key to future biodiversity conservation in the sacred groves.