The Eurasian Griffon Vulture Gyps fulvus population has increased significantly over the last four decades in Spain as well as general knowledge about its biology. However it remains unclear if this species performs a true long distance migration or just dispersal movements between Europe and Africa. This is one of the least monitored species during spring migration at the Strait of Gibraltar, which is the most important migratory bottleneck for Eurasian Griffon Vultures in the world. The aim of this work is to provide information about the number, age composition, and the timing of Eurasian Griffon Vultures crossing from Africa to Europe during the 2017 spring migration—Ramírez, J., Zufiaur González de Langarica, F.M^a and Guerrero Molina, M. (2019). Spring migration of Eurasian Griffon Vultures across the Strait of Gibraltar: number, timing and age composition. Ardeola, 66: 113-118.