Rheindelta Bodensee. 16/12/82; Vorarlberg; 1,970 ha; 47°30'N 009°37'E. Nature Reserve. The Rhine Delta, bordering Switzerland and Germany, lies between the original estuary and the channelized Rhine. The site consists of open water, fens, wet meadows, tall sedge communities, reedbeds and riverine forest. An important area for waterbirds; almost the entire Alpine breeding population of merganser molts here, and moderate numbers of several species pass or winter in the area. Various rare or endangered plants are present. Human activities include agriculture, forestry, fishing, hunting and recreation. Ramsar site no. 275. Most recent RIS information: 2005.