Scarton, F. and Valle, R. 2021. Drone assessment of habitat selection and breeding success of Gull-billed Tern <em>Gelochelidon nilotica</em> nesting on low-accessibility sites: a case study. Rivista Italiana di Ornitologia. 90, 2 (Jan. 2021). DOI:https://doi.org/10.4081/rio.2020.475.