The Magtayán lagoon, on the other hand, has a weaker breeze. It is 1.5 kilometres from CubillÃn. On one side of the river that feeds the Magtayán lagoon, there is a stretch of flooded land covered with totora reeds (Typha daminguensis). They are called the Ecantadas Lagoons because every year birds of the Scolopacidae family, commonly known as cuvivis, mysteriously commit suicide here. There are several hypotheses: One is that they are migratory birds that fly thousands of kilometres. When they reach the Ozogoche area, the furcula (bones that allow the wings to swing) are paralysed by the intense cold and they fall into the lagoons. This strange phenomenon occurs mainly in September in the Verdecocha lagoon, which is why dances, ceremonies, horseback rides, boat trips and other interesting activities take place during this month.