Spotted while driving near the flats. Bird was in flight. Long tail and wing spots clearly displayed.
In Parc Güell.
A Eurasian Magpie was sitting on a roof. It screeched and squawked and flapped its wings.
More screeches and squawks came from nearby trees. Then the Magpie flew to the trees and disappeared behind one.
Many - the one with the dirty white colour made me think at first it might be a Daurian Jackdaw. It later flew and showed a fully normal black and white appearance.
Eurasian Magpie, Elster, Pica pica.