The wetland known as Las Tablas de Daimiel was declared National Park in 1973; Biosphere Reserve in 1981 and included in the Ramsar Convention in 1982.
It is the last representative of a river ecosystem called "tablas", its formation is due to the overflow of the rivers Guadiana and Gigüela in its middle course favored by a limited topographic gradient. Iits declaration as a National Park was a major step in the conservation of one of the most valuable ecosystems on our planet, thus ensuring the survival of the birds that use this zone as wintering area, feather loss and nesting area.
Information extracted from www.lastablasdedaimiel.com