When, where, and how far will birds migrate? How many birds passed last night? Our tools help you explore the answers to these and many other questions about bird migration.
Learn howBird migration forecast maps show predicted nocturnal migration 3 hours after local sunset and are updated every 6 hours. Colorado State University and the Cornell Lab of Ornithology currently produce these forecasts. Learn more
Search with our local migration alert tool to determine whether birds are passing overhead near your city tonight! Learn more
See real-time analysis maps of intensities of actual nocturnal bird migration, as detected by the US weather surveillance radar network between local sunset to sunrise. Cornell Lab of Ornithology currently produces these maps.
Play live bird migration mapsTropical Storm Ophelia made landfall this morning in North Carolina, and, with safety first we are tracking observations of storm-driven birds reported in the wake of its passage. Read more
Hurricane Lee is making its way toward Nova Scotia, with landfall predicted on Saturday midday. With safety first above all, the BirdCast team highlights an observation map and some additional predictions about species that might be entrained and displaced by this storm. Read more
For those watching the arrival of Hurricane Lee, the BirdCast team though it might be useful to see a map of some of the species presently in the region predicted to experience impacts from Lee in the very near future. Read more
NASA Earth Observatory images by Joshua Stevens, using Suomi NPP VIIRS data from Miguel Román, NASA's Goddard Space Flight Center
BirdCast is a consortium of interdisciplinary researchers, primarily from three organizations at present, with a growing list of collaborators, supporters, and partners. Learn more