Check out the video below ⬇️ and then read the #OpenAccess study in our journal "Ecology"!
doi.org/10.1002/ecy....

Take three minutes to look at pretty birds, explore radar data, and see how we connect the structure of skies to MacArthur's ideas of niche partitioning. 📡🐦☁️🎧

We churned through over 100 million radar samples to quantify the structure of migration through the airspaces across the United States: Just out in Ecology esajournals.onlinelibrary.wiley.com/doi/epdf/10....

Truly impressive number of birds migrating tonight. More than 800 MILLION birds up in the air right now❗ #BirdMigration

Tonight’s forecast: 304 million birds expected to migrate across the U.S. 🕊️📡
The Upper Midwest is especially active – keep an eye on the skies and consider going “Lights Out” to help reduce risks for nocturnal migrants.
#BirdMigration #LightsOut #Midwest

🚨 Tuesday 19 10:30 #EOU2025

Come and join us for the symposium on #bird #migration and #ALAN, aiming to discuss fundamental research and policy.

@baptischmi.bsky.social @carburt.bsky.social @jlyr.bsky.social @vogelwarte.bsky.social

#ornithology
#aeroecology
#movementecology
#lightpollution

Still in awe of these experiences. The sounds, the dances, and the drama! Nothing like watching these leks up close.

Birds will be arriving soon! This map shows peak migration dates across the US modeled using radar data. Keep in mind, the dates represent peaks, but migration usually plays out across a couple of weeks, so estimate ± 1 week on either side of the dates on the map for max migration activity.

Summary text of the planned EOU symposium (Bangor, Wales UK, 18-22 August 2025): Artificial light at night (ALAN) can drastically alter the environment of migratory birds, both on their breeding grounds, non-breeding grounds and during their migratory journeys. ALAN can therefore disrupt the birds' evolved response to natural changes in environmental light. For example, light is an important cue for determining the circa-annual cycle of birds, and birds use it to orientate during their migratory flights. The scale of the problem has been recognised by the Bonn Convention on Migratory Species (CMS), which aims to identify knowledge gaps and develop guidelines to reduce the impact of light pollution on migratory species. This symposium aims to present the latest research on the effects of ALAN on migratory birds, identify research gaps, and to improve our understanding of how to adapt research projects in order to translate research results into policy and legislation.

Happy to co-organise a symposium on migratory birds and artificial light at night: from research to policy. #ornithology #aeroecology submit 👆🏽your abstract before March 15 😀 #eou2025

Awesome turnout at the #marchforscience today!

@indivisible.org @indivisible-co.bsky.social @coloradosun.com @nytimes.com @bennet.senate.gov @neguse.house.gov

Donate to Help Flocks take flights for ornithologists!, organized by Ashley Dayer We all need a space to feel we belong and where we are supported. This is wh… Ashley Dayer needs your support for Help Flocks take flights for ornithologists!

We all need a space to feel we belong and where we are supported. Help our Flocks take flight! Support our joint effort with @wilsonornithsoc.bsky.social & @fieldornith.bsky.social! Every bit of help makes a difference. gofund.me/b82daffb

Using weather radar and automated flight call monitoring to sample migration in the American West - American Ornithological Society How to describe something we cannot see? This challenge defines nocturnal bird migration research. Every spring and fall, millions of birds fly through the night, journeying between wintering and bree...

Read the latest blog post on Wing Beat, "Using weather radar and automated flight call monitoring to sample migration in the American West" by Dylan M. Osterhaus.
Blog post: americanornithology.org/using-weathe...
Related paper: academic.oup.com/condor/advan...
#ornithology #nocturnalmigration

Please share with your birdy and ornithology connections.
My summer Field Ornithology course is open for enrollment. We live and study birds on an island in Maine for two weeks!!! DM me with any questions. #ornithology

Excited this paper is out as part of our NSF project to create technological advances to move toward sustainable lighting policies with @kyle-horton.bsky.social and Jeff Kelly! New improved bird migration forecasts led by @mikkojimenez.bsky.social and Ali Khalighifar.