23-28 cm, sexes similar. With well-camouflaged streaked brown plumage, it has a long beak and a characteristic zig-zag flight. Present from July to early May, it does not nest in...

34-38 cm; this is the smallest duck. Mainly a wintering species, some pairs do nest here and concentrations of teal can be observed in freshwater wetlands from July. It forms...

36-42 cm, sexes similar. Sooty black in colour with white beak and frontal shield. It runs over the water to take flight. Present throughout the year, with territorial pairs...

10.5-12 cm - sexes similar. Evident brown grey tuft. Present throughout the year in the pine forests of the Carso, including the cliffs of Duino and the park of Miramare. Noted...

33-36 cm, sexes similar. There is a grey variety of cuckoo and a red one. It has pointed wings vaguely reminiscent of a bird of prey but the head is small and the beak slender....

17-21 cm, sexes similar. Characteristic black belly and rufous uppers, grey in winter. It is the most numerous wader during wintering and forms large flocks in flight that change...

69-81 cm, sexes similar. Camouflaged plumage. Present during wintering and migration. It nests here occasionally. Frequents freshwater wetlands with reeds, the lower reaches of...

29-33 cm, sexes similar. Plumage light beige with black collar. Present all year round, often associated with human settlements in cities, towns and farms. It nests in trees,...

96-119 cm, sexes similar. Grey with black and white head and the tips of the wings black. It flies with outstretched neck, unlike herons which fly with it folded. Present during...