Description
The area of Porto S. Andrea, between the island of the same name and the island of Martignano-Marinetta, is a rare example of a lagoon entrance left to evolve naturally. At the moment, this opening is shifting from east to west, with the consequent enlargement of the island of S. Andrea and reduction of Martignano. The area in front of the mouth is guarded by a large submerged sandbank, while on the inner side there is small example of a “bacan”, as the Venetians call the sandy shelf that sometimes forms on the inner side of the these mouths, in this case where the Giò de Mur and the S. Andrea channels meet. This ridge has been partly consolidated by halophile vegetation and its name “Toppi di Punta Grossa” is perhaps a corruption of the word “tapi”, meaning “shoal”.
Habitats
In the last century, vast areas of the lagoons and surrounding marshes were drained to obtain new agricultural, industrial and urban land. To...
These form the natural separation between lagoon and sea. Unlike the salt marshes, which are muddy or silty, the barrier islands are sandy and...
The coastline that once upon a time (until the 1920s) used to change naturally in response to the rise and fall of the sea level and sedimentation...
One of the largest and most vital underwater meadows of the Gulf lies in front of the mouths of the Isonzo. These are plants with ribbon-like...
The areas regularly submerged by the high tide that are revealed when the sea retreats are called the tidal flats. In Friuli Venezia Giulia, these...
Birds
85-100 cm, sexes similar. White plumage, yellow beak which becomes black in the breeding season. Present throughout the year, it does not, however,...
84-102 cm, sexes similar. All year round, nesting in colonies in lagoon groves and other wooded areas inland. Nesting has been noted since 1999. Very...
45-55 cm, marked dimorphism, the male is grey with black wing tips, the female brown, and both have a white rump. Present during migration and...
39-44 cm, sexes similar, White and black with red-orange beak and reddish legs. Present all year round, a recent phenomenon is that during wintering,...
37-43 cm, sexes similar, light grey upperparts, white in the lower parts, with a black cap and a tuft on the head, the beak black with light-coloured...
48-57 cm, sexes similar. Brownish with a long curved beak. Present throughout the year but does not nest. Forms flocks during high tide on sandbars...
37-45 cm, sexes similar. Brownish with curved beak, shorter than the curlew, and with characteristic dark streaks on the head. Present during...
140-160 cm, white, grey in juveniles, tubercle at the base of the beak, most evident in males. Present throughout the year, numerous at river mouths...
51-62 cm, an elegant duck with long neck and, in the male, long central tail feathers. A wintering species, it frequents tidal flats, the restored...
38-43 cm sexes similar, grey with white wing bands. Present throughout the year, it commonly nests in the groves of the lagoon islands and in...
77-94 cm, sexes similar. Like pelicans and boobies, they have the 4 fingers joined by a membrane to facilitate swimming. The species is present...
17-19.5 cm, sexes similar. The largest of the plovers. It is similar to the smaller plover but more massive with bolder markings and a-coloured wing...
15-16 cm, the male with grey head and white throat in the cinerocapilla subspecies, yellow belly, long tail with white outer feathers. During...
43-55 cm, marked dimorphism, with the male more colourful while the female is dark with pale-yellow head and shoulders. Present throughout the year,...
38-45 cm, sexes similar. Uppers grey-brown in juveniles, white underparts barred, pointed wings and fast flight. Present throughout the year, it...
52- 60 cm, the upperparts dark, white underside, long wings. Present during migration, especially in April-May and August-September. Relatively...
42-50 cm, the male with a characteristic white spot on the wing coverts. A very numerous wintering species from September to March, some individuals...
21-25 cm, sexes similar. This is the smallest of the terns, and has a very high rate of wing beats. It fishes with continuous hovering movements...
15-17 cm, the male with a rufous neck and black stripes visible on the top and sides of the chest. The female has the same pattern but in grey....
35-39 cm, sexes similar. In February, it gains the dark brown cap for the breeding season, which it then loses in July-August. Present throughout the...
37-40 cm, sexes similar. Compared to the black-headed gull, the beak is more massive and coral-red, it has a black head – during nesting – and...
52-58 cm, sexes similar. Grey upperparts, white lower parts. Present throughout the year and abundant, nesting in the lagoon, on the roofs of houses...
55-65 cm, sexes similar. White plumage with long feathers on the neck and back during the breeding season. Present throughout the year round, nesting...
40-46 cm, sexes similar. It is smaller than the black-headed gull. Present from November to April, numerous in some winters, it frequents the sea,...
50-60 cm. With marked dimorphism, this is the ancestor of the domestic duck. Present throughout the year, it is very adaptable, frequenting both...
68-78 cm, sexes similar. It has a short tuft that appears in adults in winter and early spring. Present throughout the year, it becomes rare in...
45-55 cm, sexes similar. It is present throughout the year and nests in colonies, associating with various species of herons in some groves of the...
17-19 cm, sexes similar. Blue upperparts, red underparts with large, dark beak dark and very short tail, which in flight makes it resemble a...
30-34 cm, sexes similar. Grey above, whitish beneath, slightly upturned and relatively large beak. Present throughout the year, scarce from mid-May...
24-27 cm, sexes similar. Grey-brown uppers, lighter beneath with evident white bar on the wings, darker in breeding season; red beak and legs....
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...
18-31 cm, sexes similar. Light grey uppers and white lower parts, the beak shorter than the similar sandpiper. Present from August to May, it does...
18 to 20.5 cm light brown uppers. white on the lower parts. The wings have a narrow light-coloured bar and are often blocked briefly in flight....
33-41 cm, sexes similar. Grey brown, with whitish underparts during wintering, red in breeding season. Long and slightly upturned beak. Present...
26-29 cm, sexes similar. Grey plumage, black and white on the under parts during the breeding season. Grey in winter with characteristic black...
48-56 cm, sexes similar, plumage varies widely, generally brown with light patches. Present all year round, most numerous even in the largest lagoon...
Bucephala clangula (local names: moro, moreto, quatro oci) 40-48 cm, the male with a black head and characteristic white patch below the eyes....
17-21 cm, sexes similar. Black upperparts, red throat and whitish belly. Present from March to April and from September to October, it nests in rural...
52-58 cm, the male with dark green head and white neck, the female with reddish head. Present during wintering, it is frequent during the spring...
34-37 cm, sexes similar. Light grey upperparts and white underparts, with black cap and red beak. It is the classic tern, frequent from April to...
63-75 cm, sexes similar. In winter the plumage is dark grey above, whitish underneath; the beak is more massive and held flat compared to the...
55-67 cm, sexes similar. In winter, the plumage is grey, and whitish underneath. Present in winter at sea and in the deepest areas of the lagoons....
46-51 cm, sexes similar. Grey upper part, whitish beneath, while in its nuptial plumage it reveals obvious tufts on the head and below the eyes....
28-34 cm, sexes similar. Grey and off-white in winter, in March it has a black neck and a yellow tuft behind a red eye. Present from August to April,...
29-33 cm, sexes similar. Plumage light beige with black collar. Present all year round, often associated with human settlements in cities, towns and...
25-29 cm, sexes similar, orange plumage striped with black, erectile crest on the head, flickering flight. Present from April to September and fairly...
55-65 cm, white in appearance with a dark red beak with tubercle in the male. Present throughout the year, it frequents areas subject to tide and...
