Forecast and Analysis

Migration Alert: High intensity migration this evening, 10-11 September 2020

Andrew Farnsworth The Cornell Lab Sep 10, 2020

Black-and-white Warbler. Martina Nordstrand/Macaulay Library. eBird S73352637.

The BirdCast model is predicting high intensity migration for the continental US for the night of 10-11 September 2020.

We estimate this migration will comprise approximately 400 million birds, with the highest intensity movements in Texas and portions of the southern Appalachians and lower Mississippi River valley. This will be another amazing opportunity to experience migration, whether by listening at night to vocal birds in flight or observing the following morning for new arrival and departures. These intense movements also highlight an opportunity for conservation action – turn off lights at night to avoid attracting birds into hazardous conditions in which they can collide with buildings and other structures!

Species on the move

This high intensity movement will feature an array of species migrating at night. The expandable tables that follow detail what species will be on the move in your region of the US over the next days! For further information about BirdCast regions, species on the move, and the data we use, please visit this review page.

Upper Midwest and Northeast

Ovenbird. Ian Davies/Macaulay Library. eBird S25203380.

Species on the Move

Beginning Arrivals What is this?

Peaking Arrivals

Beginning Departures

Ending Departures

Gulf Coast and Southeast

Yellow-throated Vireo. David Hall/Macaulay Library. eBird S31532331.

Species on the Move

Beginning Arrivals What is this?

Peaking Arrivals

Beginning Departures

Ending Departures

Great Plains

Marsh Wren. Brian Peterson/Macaulay Library. eBird S24909879.

Species on the Move

Beginning Arrivals What is this?

Peaking Arrivals

Beginning Departures

Ending Departures

West

Golden-crowned Sparrow. Marlene Cashen/Macaulay Library. eBird S35938380.

Species on the Move

Beginning Arrivals What is this?

Peaking Arrivals

Beginning Departures

Ending Departures

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