Like the other wetlands located in the strip between the Baetic mountain ranges and the depression of the Guadalquivir, this complex is a wetland formed by three shallow lakes: Zarracatín, Arjona and Alcaparrosa. Their marked seasonal character means they depend on direct rainfall so they are usually dry in summer or during periods of continued drought.
Originally, the wetland landscape was full of holm oaks (carrascas) along with wild olive trees, carob trees and gall oaks. Indeed, the historic succession of different civilisations has led to practically all of the natural vegetation of this land disappearing so the land can be used for intensive farming. Hence the lakes are fully surrounded by crops. Only remnants of natural vegetation remain near to the lake, notably tamarisk, rushes, bulrushes and reeds.
Thanks to their location, these lakes are of a high environmental value for birdlife, being a key location for sustenance, reproduction and rest during the migrations of numerous aquatic birds. There is an abundance of anatidae and rallidae, especially the common coot, with the occasional presence of ruddy ducks, flamingos and Western swamphens.
Complejo endorreico de Utrera