One-third of the critical wetlands that migratory waterbirds need when traveling between Africa, the Middle East, Europe and Central Asia are entirely unprotected, according to the first survey using a new online information tool. As a result, 42 percent of these waterbird species are in decline, bird experts warn. The online tool was unveiled at an International Waterbird Conservation Symposium taking place in The Hague to mark the 15th anniversary of the African-Eurasian Migratory Waterbird Agreement, AEWA.