In Romania, 100 nest boxes for the European Roller (Coracias garrulus) were installed within the LIFE Danube Free Sky project with great success. Rollers occupied 28 boxes in 2024 and 39 boxes during the 2025 season. How were the locations for the nest boxes selected, and what criteria had to be met? What makes a site suitable for this spectacular, colorful bird? Journey into the stunning landscapes of the Danube Delta with Alexandru Dorosencu, Senior Scientific Researcher at the Danube Delta National Institute for Research and Development, and discover how science and conservation come together to support one of Europe’s most charismatic species!