Starting May 1st, two eagles and a falcon will be responsible for scaring away pigeons that have been causing significant deterioration to the historic monument. This initiative was announced by Deputy Mayor Inma Sanz, who detailed the deployment of a Harris's hawk, a red-tailed hawk, and a hybrid falcon.

The birds of prey will perform three weekly flights around the Puerta de Alcalá. The accumulation of feathers, nests, and droppings from pigeons has been identified as the main cause of damage to the monument's surface, affecting its preservation.

The Madrid city council had previously used this technique successfully during the building's rehabilitation, achieving positive results in controlling the pigeon population. Now, this practice is being resumed to ensure the long-term protection of the city's cultural heritage.