Excited to share & associated paper We used @KenyaBirdMap & @Team_eBird data to assess the change in distribution range of 1 088 bird species. We found a range reduction among scavengers & migrants, while introduced birds expanded.

RT @Birgen_Haest: Come work with us - PostDoc @Vogelwarte_scie - on characterizing insect migration 🦋🪲🪰 using vertical-looking radars 📡.Dea….

By analyzing total stopover duration, we identified key areas of stopover use. The figure also includes random trajectory simulations, highlighting the range of possible migration routes. 📍✨ 🎯

While crossing the Congo Basin forest, Woodland Kingfishers fly higher and longer, with extended stopovers before or after - a behavior resembling barrier crossing! 🌳✈️

Our study reveals that our Woodland Kingfishers migrated to a non-breeding site with a habitat similar to the breeding site, matching conditions like rainfall, vegetation greenness and temperature. 🌧️🌱🌡️

Pressure-based geolocation pinpointed Woodland Kingfishers’ non-breeding site to ~50 km in South Sudan. Remarkably, all 4 birds (including one tracked across 2 years) stayed in the same region! 📈📍

📢 New paper alert! Dive into the fascinating migration of the Woodland Kingfisher within Africa! 🌍✨. 📄 Big congratulations to Yann Rime and @taymida on this outstanding work! 👏!

RT @arochakenya: HALLELUJAH!!! A young Barn Swallow just caught at Ngulia wearing a ring inscribed 'KAZAKHSTAN ALMATY'!!!! That's c.6,000km….

RT @arochakenya: OUTRAGEOUS journeys the tiny #waders make that we see on our beaches! These are tracks of 3 Curlew Sandpipers that have re….

RT @AdriaanDokter: New release of our #rstats package on CRAN! 📡📡🐦🐦🐛New functions, features and bugfixes #radar #or….

RT @BaranesJudy: 1/3 It's #WorldMigratoryBirdDay! Did you know that #radar is a great tool to study bird migration & many birds migrate @ n….

RT @Vogelwarte_scie: Using multi-sensor geolocators, Y. Rime, @rafnuss, @biobriedis, @MarthaMariaSan, @DanC_eco, @vamrhein, @BBirdClock,  e….

Thanks to a great team of co-authors @mathieuGravey, @biobriedis, @FelixLiechti, and Dan Sheldon, the journal @MethodsEcolEvol and host intitute @Vogelwarte_scie, @CornellBirds.

You can apply this method to your data with the R package GeoPressureR Learn more how to use it with the user manual

A key novelty is to account for the spatio-temporal varation of wind using fine-scale hourly and altitude-specific wind data. Our results show that wind both drastically accelerates migration (18LX) but also creates drift, shaping the migration route (18IC)

We integrate both the static position and the likely flight transition to model the trajectory with a Hidden Markov Model (HMM). The main strength of our approach is to prune efficiently the HMM allowing to model the full trajectory directly and rapidly.

A few weeks ago, I shared a method to determine the positions of a small birds equipped with pressure sensors: Additional modeling is needed to account for realistic flight distances between each of these static positions.

🎲 Can you match each trajectory with its species?.🏆 Find the answers in the #OpenAccess paper!

I am thrilled to present a new method to reconstruct the full migratory trajectory of birds from pressure sensors and wind data! 🦅🐦🌍 .Check it out: 🔗 . #science #birdmigration #birdwatching #ornithology

To celebrate the #eBird exotic release (and have a bit of fun after finishing my proposal😃)- I created a new Chrome extension for ebird #datageeks like me: Check the screenshots to see what you can do with it!