BirdCast map showing 207.9 million birds in flight at 1:30am EDT on April 14, 2026.

NEXRAD radar composite map showing birds and weather. There’s especially heavy bird signals down in southern Texas.

Look at those heavy radar signatures down in the south! New arrivals! New species!
#birds #spring #migration
#LightsOutForBirds

BirdCast map showing 158.9 million birds in flight at 12:10am EDT.

NEXRAD radar composite map showing birds and weather.

Why am I giddy about a stationaryish high pressure system out east of FL? #Birds

It’s making a several-day low-level jet stream with constant, smooth wind ~2,000 to 3,000 ft above the ground in the 30-40mph range at night and moving to the N/NNE.
#spring #migration #LightsOutForBirds

BirdCast map showing 111.1 million birds in flight at 11:20pm EDT on April 9, 2026

NEXRAD radar composite map showing birds and weather.

Another steady night of migration bracketed by rains.
#birds #spring #migration #LightsOutForBirds

Ramping up! 80 million+ now!
#birds #spring #migration #LightsOutForBirds

BirdCast map showing 56.6 million birds already in flight at 9:50pm EDT.

NEXRAD radar composite map showing birds and weather.

Alright, now that’s what I’m talking about! Numbers will pick up as we progress beyond sunset, but wanted to highlight tonight’s push north. Plus, looks like some new arrivals on the way along the southern borders.
#birds #spring #migration #LightsOutForBirds

A reminder that with migration ramping up, it’s time for #LightsOutForBirds

Dim or switch off nonessential lights at night — especially during migration seasons.

Treat glass by day with bird-friendly solutions like decals, patterns, or films to make windows visible to birds.

#StopBirdCollisions​ #BirdSafeStructures​
#LightsOutForBirds​

youtube.com/watch?v=0aWM...

BirdCast map showing 440.8 million birds in flight at 9;10pm EDT.

NEXRAD radar map showing birds and weather.

Windy map showing winds along eastern U.S. and out in Atlantic Ocean.

Also, birds are migrating again tonight. East coast migrants are getting a good tail wind thanks to those hurricanes out over the ocean.
#birds #fall #migration
#LightsOutForBirds

#LightsOutForBirds I've kept my outdoor lights and garage lights off for a week, here on the upper West Coast. I know I should have started sooner. The question is, what is the end-point? I read somewhere that it was mid Oct. Enquiring Minds Want to Know.

NEXRAD composite radar map showing birds and weather.

BirdCast map showing 522.6 million birds in flight at 11:30pm EDT on September 28, 2025.

Very east weighted migration tonight, possibly as species composition begins to shift from long distance to short distance migrants. #birds #fall #migration #LightsOutForBirds

NEXRAD radar map showing birds and weather.

BirdCast map showing 733.4 million birds in flight at 11:50pm EDT on September 27, 2026.

Another solid night of migration. This week alone has seen billions of birds, cumulatively, on the wing.
#birds #fall #migration #LightsOutForBirds

👍😊Mine too! #LightsOutForBirds

#LightsOutForBirds !

Not even peak part of night yet, but we’ve hit over ONE BILLION BIRDS in flight!!!
#birds #fall #migration
#LightsOutForBirds

With most of the storm systems moved far enough out of the current major flyways, I feel like tonight or tomorrow night may give us one of our billion bird nights. A major help that anyone can do is simply turning off or blacking out lights at night!
#birds #fall #migration #LightsOutForBirds

Up to over 800 million birds!!! If it wasn’t for those central storms, we probably could hit a billion birds night. Really good winds behind those storms, though, giving birds a nice boost south.
#birds #fall #migration #LightsOutForBirds

NEXRAD radar map showing birds and storms.

BirdCast map showing 577.8 million birds in flight at 9:40pm EDT on the 23rd of September, 2025.

It’s still too early for migration to take off out west where the sun hasn’t set yet, and there’s a lot of storms shutting down migration in the middle, but still! Over half a billion birds in flight already tonight!
#birds #fall #migration
#LightsOutForBirds

NEXRAD radar map showing birds and weather.

BirdCast map showing 215.8 million birds in flight at 11:20pm EDT on September 21, 2025.

Tonight’s migration is moving ahead of and behind assorted storm systems.
#birds #fall #migration
#LightsOutForBirds

NEXRAD radar map showing birds and weather.

BirdCast map showing 553.2 million birds in flight at 11:00pm EDT.

Another night, another half billion plus flight!
#birds #fall #migration #LightsOutForBirds

Migration Dashboard - BirdCast Explore nightly migration data in your region

Want to see what's flying overhead in real-time? Check your local migration forecast at dashboard.birdcast.info ! Together, we can help support safe passage for millions of migrating birds. Every light turned off makes a difference!

#LightsOutforBirds #lovethehighlands #wildlifeprotection #hhltny

NEXRAD radar map lit up with lots of birds migrating, plus some storms.

BirdCast map showing 566.7 million birds in flight at 12:10am on September 19, 2025.

ZOMG! Birds! Over half a billion zipping by tonight!
#birds #fall #migration #LightsOutForBirds

Stop Bird Collisions Birds flying into windows, railings, balusters, and other structures made from glass is a leading cause of global bird loss.

You can help:
💡 Dim non-essential lights from 11pm- 6am
🪟 Apply anti-collision decals to windows

🌃 Simple changes at home and in cities can save lives, conserve energy and create healthier nights for both wildlife and people.

👉 stopbirdcollisions.org

#birds #birdsafeaction #lightsoutforbirds

#LightsOutForBirds

BirdCast map showing 613 million birds in flight at 11:20pm EDT on September 16, 2025.

NEXRAD radar map showing birds and weather.

Over half a billion birds right now!!
#birds #fall #migration #LightsOutForBirds

NEXRAD radar map showing birds and weather.

BirdCast map showing 340 million birds in flight at 12:20am EDT on September 12, 2025.

Another busy night for the birds in the sky!
#birds #fall #migration #LightsOutForBirds

I’m glad there are some still with us. Bird migration is an extraordinary thing.
#LightsOutForBirds

NEXRAD radar map showing birds and weather.

BirdCast map showing 501.1 million birds in flight at 11:40pm EDT on September 7, 2025.

Half a billion birds!!!!
#birds #fall #migration #LightsOutForBirds

Ask the Meteorologist: How you can track, protect birds with each passing cold front Cold fronts trigger bird migrations, and there are ways you can ensure their flight down south is safe.

Some good info about bird migration.

Happy to learn that a number of places in NC do #LightsOutForBirds to prevent building collisions (Raleigh, Asheville, Greensboro, Matthews, Cary, Durham, Cumberland County and Winston-Salem). #birds #migration

Graphic from Audubon North Carolina with a photo of a Northern Waterthrush. Dim the Lights For Birds at Night 11pm-6am Through Nov. 30 #LightsOutNC

From now until the end of November:
#LightsOutforBirds

Radar is lighting up!
#birds #fall #migration #LightsOutForBirds