White-tailed eagles have arrived in Spain as part of a conservation plan to reintroduce the huge bird of prey to one of its ancient habitats.The eagle, which can have a wingspan of nearly 8 feet (2.4 meters), had been considered extinct on the Iberian Peninsula since the 19th century. But now, 13 of 18 white-tailed eagles (Haliaeetus albicilla) that were raised in Norway will be released into the wild at the end of the summer.The white-tailed eagles will live in a special enclosure near the town of Pimiango in the Spanish region of Asturias for several months so they can acclimatize to local conditions.