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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.

Migration Forecast

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Bird migration forecasts powered by 23 years of radar observations and the most recent North American Mesoscale weather forecast. Migration forecasts show predicted nocturnal migration 3 hours after local sunset and are updated every 6 hours. Learn more

Scientific Discussion

Global Big Day: Species on the Move in the US

Global Big Day is nearly here, and Team BirdCast wishes all of you birding around the planet an exciting, safe, and diverse day! For those teams birding in the US, we have a special addition of Species on the Move ... Good luck to all!

Species on the Move, Global Big Day Edition: Great Knot

Global Big Day is almost here, and here's another Species on the Move that teams in Eastern Asia may hope to find!

Missing the mark: a brief discussion of migration in northeastern North America associated with a strong frontal passage

19-22 April 2019 saw some spectacularly intense weather in the eastern US, with some obvious after effects in terms of migrating birds' distributions. Read on for a brief description of events that presumably carried nocturnally migrating songbirds farther afield that they intended to travel.

Species on the move: a quick look among continents

Migration is well under way across the globe, and Team BirdCast is highlighting a few species in interactive maps made with eBird data. Check out how the progression of migration for the group of species has changed over the last 30 days.

A primer for using weather surveillance radar to study bird migration

As a reminder to what the team is working on here at BirdCast, we return to a post we wrote last year. With spring upon us and migration in full swing, here is a primer on what we do. We turn weather radar data into information on the numbers and flight directions of birds aloft in order to expand the understanding of migratory bird movement. After several years (and hundreds of posts) describing migration, species on the move, and unique migration events, we want you to have a better understanding of what happens at BirdCast. Here is a brief overview and a behind-the-scenes look at the ways we apply radar data to study bird migration.

More scientific discussions...

Live Migration Maps

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Real-time bird migration maps show intensities of actual bird migration as detected by the US weather surveillance radar network. All graphics are relative to the Eastern time zone.

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