The Guggenheim Museum in Bilbao, northern Spain, helped transform a post-industrial city in decay into a hub for culture and tourism. The museum wants to expand that success by opening annexes in the nearby Basque countryside. But the site it’s chosen is ruffling some feathers: an old shipyard abutting the an important bird sanctuary and migratory resting spot. The World’s Gerry Hadden reports from the Urdaibai wetlands.