33-36 cm, sexes similar. Black and white, with long red legs. Present from March to September-October. It nests in the valli da pesca (fishing reserves) and freshwater marshes...

21-23 cm, the male is blue with blackish wings while the female is brown. Present throughout the year, it is a rare winter visitor. It nests on the cliffs of the coast of Trieste...

45-52 cm, sexes similar. Present throughout the year. It reproduces in some lagoon groves associated with other species of herons. Nesting has been established since 2008 and the...

13-14 cm, sexes similar. Reddish brown plumage, loud, crackling song, especially when a human intrudes on the territory of a male. Present throughout the year in wetlands rich in...

10-11.5 cm, sexes similar. A small tit with characteristic white patch on the nape. Present all year, it nests in the pinewoods of the Carso and Lignano. During wintering, it is...

48-56 cm, sexes similar, plumage varies widely, generally brown with light patches. Present all year round, most numerous even in the largest lagoon in winter. This is the most...

60-70 cm, the male with black and white plumage. A permanent population lives between the mouth of the Isonzo and that of the Timavo. Some pairs have nested regularly since 1999...

Bucephala clangula (local names: moro, moreto, quatro oci) 40-48 cm, the male with a black head and characteristic white patch below the eyes. Present during wintering and...

30-34 cm, sexes similar. Grey above, whitish beneath, slightly upturned and relatively large beak. Present throughout the year, scarce from mid-May to mid-June, numerous in April,...