The site comprises wooded hills, mainly covered by Pinus and maquis (Monti dell'Uccellina), as well as a large brackish marsh (Stagni della Trappola) with very little vegetation, mainly Salicornia, and a river mouth (Bocca d'Ombrone) on the Tyrrhenian coast of Tuscany, about 10 km south of the town of Grosseto. Habitats also include rocky sea cliffs and sand beaches. The main land-use is nature conservation.
The site is important for wintering waterbirds (especially Anser anser) and is a key non-breeding site for Numenius tenuirostris.
BirdLife International (2020) Important Bird Areas factsheet: Uccellina mountains, Trappola marshes and Ombrone mouth. Downloaded from http://www.birdlife.org on 09/07/2020.