Tracking migrants is a challenging task that policymakers, researchers and humanitarian organizations have long struggled to achieve. The data they use is often outdated, incomplete and inconsistent ...

Hugh Dingle is gracious about geese and robins. They may be the most popular icons of migration, winging south in the fall and lifting people’s spirits in spring, when they finally honk or bob-bob-bob ...

Tracking global migration has long been hampered by poor, outdated data. Now researchers have harnessed social media data to create a near real-time map of international movement. Tracking migrants is ...