The rich wetlands of Stymphalia are home to many species of birds, while the lake used to be an essential stopover during migratory birds’ autumn migration. Authors Ph. Katsigiannis and A. Bonetti inventory 50 species of birds that either visit or live permanently in this biotope. Among them are herons, ducks, coots and moorhens, waders, various birds of prey and other nocturnal birds, all of them with a description of their main characteristics. The heron family includes the little bittern, the white egret and the rare purple heron, possibly some of the most beautiful species in Europe. The authors warn of the increased danger of seeing many of these species disappear from the region as the natural habitat’s balance has been upset by repeated droughts and the injudicious use of the lake's water.
The book is also available in Greek.