Observer les oiseaux du lac de Constance ou Bodensee (Allemagne)

Soon after it completes its descent from the Alps, the Rhine River broadens and forms Lake Constance before continuing its 820-mile route to the North Sea. Measuring 40 miles in length and 8.5 miles in width, Lake Constance covers 220 square miles, making it central Europe’s second largest freshwater lake. Lake Constance, which also is known as Bodensee, is bordered by three countries: Austria, Germany, and Switzerland. In spite of a wide variety of human activities, Lake Constance has preserved a natural landscape with rich biological diversity. About 200,000 water birds rest or hibernate in the region. These include about 80,000 Tufted Ducks, 50,000 Pochards, and 7,000 Great Crested Grebes. 
François Diemert visited the lake between February 14 and 19, 2004.