Isonzo mouth, Cona island and Panzano Gulf

Country/territory: Italy

IBA criteria met: C6 (2002)
For more information about IBA criteria, please click here

Area: 6,965 ha

Lega Italiana Protezione Uccelli

Site description (2000 baseline)
The Isonzo river meets the north Adriatic Sea some 30 km west of Trieste. There are saltmarshes, reedbeds, mudflats and sandbars, riparian woods, wet grasslands and agricultural areas. Panzano Gulf is an open sea bay. The main human activities are nature conservation, tourism, hunting, fishing, mussel-collecting and agriculture.

Key biodiversity
Panzano Gulf is important for wintering waterbirds, with internationally important numbers of Anas penelope and Bucephala clangula. Species of global conservation concern that do not meet IBA criteria: Aythya nyroca (max. 4, winter). More than 280 species have been recorded, of which 70 breed.

Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Isonzo mouth, Cona island and Panzano Gulf. Downloaded from on 08/12/2023.