Discover Bird Migration

… with Weather Surveillance Radar

Weather surveillance radar (WSR) is an excellent tool for determining where birds are flying, how many birds are aloft, and in what direction, speed, and altitudinal strata they are moving1. Use the four BirdCast products below to discover and to explore patterns of nocturnal bird migration in the contiguous U.S.

Black base heat map showing density of live migrating birds on an example day. Arrows show direction birds are moving.

Live Maps

Discover how much, where and when, and in what direction nocturnal bird migration is occurring in near real-time.

Watch Live

Without showing direction of movement, heat map shows forecasted density of migrating birds on an example evening.

Forecast Maps

Learn how much, where and when nocturnal bird migration will occur.

Be Prepared
Image shows a fluctuating graph over a period of time, indicating a multi-period set of data.

Your Local Dashboard

Explore details of nocturnal bird migration in your county and state.

Discover Yours

Image shows red alert triangles on a section of a map of the U.S.

Migration Alerts

Know when intense bird migration will be occurring in any city in the contiguous U.S.

Sign Up Here

Email alerts available in 216 U.S. cities

  1. Disclaimer: radars in mountainous areas (e.g. the Rockies) have obstructions that restrict radar coverage, providing the appearance of no migration where migration may be occurring. Radars may occasionally shut down for maintenance, and in these periods no data are available ↩︎

Scientific Team

BirdCast is made possible by the participating scientists at the below institutions, and many other contributors.

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