The migration routes of bats in Europe are poorly known. To increase our knowledge and better protect migrating bats, the project Bat migration routes in Europe builds a European database of sounds collected using passive acoustic monitoring by numerous partners. To encourage the participation of partners from countries underfunded in bat research and conservation, 196 Audiomoths were distributed to non-profit structures from these countries. This allowed partners from nine additional countries to join the project. Half of the beneficiaries already sent the sounds they collected. This donation also had the objective to provide material to collect data to feed other projects in bat research and conservation in these countries. See the project's website for details at https://bat-migration-europe.netlify.app/project/