Site d'observation des oiseaux

For the period 2005 to 2013, 8149 observations made at the Gambsheim dam have been entered in www.faune-alsace.org. They concern 179 species of birds. 60 species breed there, 68 can be observed in winter and 135 are visible during migration (the same species can nest, winter and pass through the site at the same time).
Among the breeders, waterfowl occupy an important place. Several species of ducks breed on the site: Mallard, Gadwall, Scaup, Tadorne de Belon, etc. Le Petit Gravelot occupies the bare gravel areas. In the early 2000s, the upstream museum was home to a colony of Black-headed Gulls of more than 4,000 pairs, with a few pairs of Black-headed Gulls. The gulls now only occasionally nest on the site, which is not the case for the Least White-winged Gull, which is present every year.
In winter, nearly 3000 ducks, coots, grebes and cormorants are counted each January. The most common species is the Mallard, followed by the Tufted Duck, Tufted and Gadwall, Green-winged Teal, Greater Scaup, Great Cormorant, Common Coot, etc.
During the migration period, the vast expanses of water allow Black Tern, Pygmy Gull, Black-necked Grebe, Osprey, etc. to feed during their travels, while the mudflats and open areas are traversed by a large number of shorebird species (Common Sandpiper, Minute, Variable, Common Snipe, Barking Sandpiper, Harlequin, Tinker, Jay, etc.). Large waders such as Little Egret and Eurasian Spoonbill are sometimes observed on the site, as are the rare Least Tern, Caspian Tern, White-winged Stilt and Sabine's Gull.

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