Whilst interactions between crop and livestock productions can contribute to the agroecological transition, crop-livestock farms are in decline in favour of specialized farms. Interactions between farms can be an alternative through exchanges of fodder, grain, straw, and manure. However, these interactions are rarely documented. We aimed to better understand farmers’ perceptions and decision factors when involving in-between farm interactions. We worked with a group of about 17 farmers in south-western France (Ariège, 2017-2022). The group included crop, livestock and crop-livestock farmers aiming to increase local interactions. We conducted two sets of semi-structured interviews with the participants to understand their perceptions on interactions and study interactions they had. We highlighted heterogeneous perceptions of the benefits of interactions. Crop farmers were interested in agro-environmental benefits and focused on decreasing logistical costs. Livestock farmers aimed for feed self-sufficiency and self-sufficiency in decision making when involved with cooperatives. Logistics, neighbouring and social dimensions were important decision factors. We provided an initial insight into interactions between farms. We highlighted the importance to further study farmers’ situation in dynamic, over time (e.g. evolving situations, possible positive gradation of interactions) and space, as well as asymmetries in farmers’ situations (e.g. offer or demand).