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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

Migration alert: coastal mid Atlantic and Long Island, 22 May 2020

A stationary front in the Carolinas, evolving into a cold front and moving offshore with some strong storms and southerly flow in advance of its movement, could make for some interesting birding along the immediate mid Atlantic and Long Island coasts.

Major fallout and morning flight event on Cape Cod, Massachusetts on May 16th, 2020

A massive migration event occurred on the Massachusetts coast on the morning of 16 May 2020. Several observers were fortunate to be on the ground in the right place and the right time. Here's the story!

Migration alert: West Coast Wind, 22-24 May 2020

The passage of an unusually intense late May cold front will result in strong northwest winds along the Pacific Coast through the weekend and could bring pelagic goodies to shore.

Migration update: northeastern US progress, 21 May 2020

Spring 2020 has seen some anomalously low temperatures in the northeastern US, and no exception is the coolest May going back to the 1990s. But changes are coming this weekend.

Migration Alert, mid Atlantic and New England: possible migration stories for 18-21 May 2020

Although Tropical Storm Arthur is not predicted to make landfall, winds associated with the system's passage will impact the coastal US from the Carolinas through southern New England in the coming days. These winds, depending on location, may be sustained at 20-30 knots for several days, and could bring an array of typically pelagically distributed species ashore.

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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