Bird migration forecasts in real-time
When, where, and how far will birds migrate? Our migration forecasts will answer these questions for the first time.
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Migration tools
Bird migration forecast maps
Bird 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
Local bird migration alerts
Search with our local migration alert tool to determine whether birds are passing overhead near your city tonight! Learn more
Live bird migration maps
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 maps
Recent news
Hurricane Teddy is arriving soon in Atlantic Canada. A significant diversity of tropical seabirds may arrive with it in Nova Scotia, Newfoundland, and possibly even Greenland. Read more
Beta is currently a tropical storm, deteriorating to a tropical depression in the next 36-48 hours. Storm birds will be apparent on the Upper Texas coast from Monday through Wednesday, whereas areas further inland into southwestern and central Louisiana may experience some impacts by Thursday. Read more
Strong northeasterly winds in the western North Atlantic may hearken the arrival of small (very small) numbers of Northern Wheatears in eastern North America. Several have been reported in the last days, will more arrive soon? Read more
NASA Earth Observatory images by Joshua Stevens, using Suomi NPP VIIRS data from Miguel Román, NASA's Goddard Space Flight Center
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BirdCast Partners and Support
BirdCast is a consortium of interdisciplinary researchers, primarily from three organizations at present, with a growing list of collaborators, supporters, and partners. Learn more
Core partners
Core funders
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