Migration routes and wintering areas of Booted Eagles Aquila pennata breeding in Spain

[Capsule]: Five Booted Eagles breeding in Spain were tracked by GPS during migration. Autumn routes were generally more eastern than spring routes, showing a typical loop migration. Birds covered on average ca. 200 km/day, and only one individual used a long-term stopover site (for up to 4 weeks). All but one used a single wintering area, located in Sub-Saharan Africa, at 2800-3500 km from their nests. Eagles were forced to stop migration at the Strait of Gibraltar for up to 6 days.Financed by Iberdrola Foundation. U. Mellone is supported by FPU grant of the Spanish Ministry of Education (reference AP2008-0947). P. López-López is supported by a ‘Juan de la Cierva’ postdoctoral grant of the Spanish Ministry of Science and Innovation (reference JCI-2011-09588).Peer Reviewe