Join three of the Cornell Lab of Ornithology’s Edward W. Rose Postdoctoral Fellows, for an evening that will open your eyes to the unseen and mysterious activities and patterns during migration. Cecilia Nilsson explains why we use radar to study migration, and uses her research as an example of how radar can be used to study how birds migrate and how their migration is shaped by winds. Kyle Horton discusses his use of radar to quantify and forecast migratory flights, from small to large scales, highlighting the impact of anthropogenic light at night on nocturnally migrating birds. Finally, Adriaan Dokter talks about how he uses the radar network to count the number of migratory birds leaving and entering the United States. The team explores where birds migrate, when and where they die, how successfully they reproduce, and how North America’s avifauna has changed over the last two decades.