An essential stopover
Laguna de Gallocanta is an important layover for the common crane (Grus grus) on its vast migration. These birds travel from their breeding grounds in northern Europe—including Scandinavia, Germany, and the Baltic states—to wintering areas in southern Spain and North Africa. The lake's location on the Iberian Peninsula makes it a perfectly positioned rest and refueling station. Tens of thousands of cranes use the site, with peak counts sometimes exceeding 100,000 individuals in a single day. The main southbound passage occurs from mid-October through November, with the return journey north happening between mid-February and March.
The cranes are drawn to Gallocanta for two primary reasons: safety and food. The large, shallow saline waterbody provides a secure overnight roost, protecting the birds from terrestrial predators while they rest. At sunrise, the cranes leave the lagoon in massive, trumpeting flocks to feed. They spend the day in the surrounding agricultural area, foraging on leftover grains from the cereal harvest. This combination of a safe "bedroom" and a well-stocked "kitchen" makes the lagoon an important hub on the western European flyway.