Out now in Journal of Biogeography! We used DNA metabarcoding to reveal site-specific diets in Red Knot chicks. While diets seem plastic, this specialisation risks phenological bottlenecks under climate change. Is foraging flexibility enough to buffer these shifts? doi.org/10.1111/jbi.70189

Tracking #waders/#shorebirds - where are the knowldege gaps? See Martin's new paper: conbio.onlinelibrary.wiley.com/doi/10.1111/... BLOG What are we learning from tracking? wadertales.wordpress.com/2025/05/06/m... Map illustrating Whimbrel tracks 👇 #ornithology

#Greenland - a great place to breed ... ... if you're a Sanderling. Birds return in May, after spending the winter in countries as diverse as Scotland, Mauritania and Namibia. Fascinating research by @jeroen-reneerkens.bsky.social: wadertales.wordpress.com/2019/10/04/t... #ornithology

Trumps Groenland-dreigementen doen ook arctisch onderzoekers beven

Dit is niet het moment!! Een demissionair kabinet hoort geen ingrijpende besluiten te nemen, maar een kleine Kamermeerderheid wil tóch het EU–Mercosur akkoord laten ondertekenen. Dit is onacceptabel, en heeft vergaande gevolgen. Deel deze post! nos.nl/artikel/2594...

Missed our conference, or just want to see more amazing #wader #shorebird research? Members can check out the early online #WaderStudy journal here ⬇️ www.waderstudygroup.org/publications... #ornithology

What happens to shorebirds when the mud disappears? wadertales.wordpress.com/2022/10/15/w... Blog from 15 Oct 2022 🎂3️⃣ #ornithology

Reminder! @jeroen-reneerkens.bsky.social appreciates reports of colour-ringed Sanderlings: submit.cr-birding.org/projects/181/ Counts of adult/juvenile Sanderlings in flocks are great too. Blog about the Greenland Sanderling project: wadertales.wordpress.com/2019/10/04/t... 📷 @markaeaton.bsky.social

Thank you to all of today's speakers for a really interesting array of talks! So much great research, and more on the way tomorrow! #IWSG2025 #waders #shorebirds #ornithology

A vagrant juvenile Sanderling turned up in Israel—likely after a single non-stop flight from the Dutch Wadden Sea. Here’s thread explaining why that’s remarkable and interesting. @wadertales.bsky.social @globalflyway.bsky.social #Birds #Migration

A vagrant juvenile Sanderling turned up in Israel—likely after a single non-stop flight from the Dutch Wadden Sea. Here’s thread explaining why that’s remarkable and interesting. @wadertales.bsky.social @globalflyway.bsky.social #Birds #Migration

Colour-ring readers jave contributed greatly to the science underpinning 1️⃣0️⃣ years of WaderTales blogs. One of the best studies, in terms of feedback to observers, is the Sanderling project run by @jeroen-reneerkens.bsky.social. More here: wadertales.wordpress.com/2019/10/04/t... #ornithology

This month, WaderTales will be ten years old. I'm going to create a thread that highlights some of the research findings that have surprised me. Plenty of "Wow!" & "I didn't know that!" moments. Here's a link to the catalogue of 150 blogs wadertales.wordpress.com/about/ #ornithology

It is juvenile #Sanderling time! Observers, please share your counts of adults and juveniles with me ([email protected]; do not use the address in ageing guide!). I will use them in population models to. 📄 Find the ageing guide here: bit.ly/3HQdb5M

Sanderling. Just a few weeks old. Imagine arriving in St Andrews, from Greenland. Should you stay? Or fly to England, Portugal, Mauritania or Namibia? Where's best? If only this bird could read: wadertales.wordpress.com/2019/10/04/t... #ornithology @jeroen-reneerkens.bsky.social

It is juvenile #Sanderling time! I am very interested in counts of adults and juveniles to be used for population models. Please use the manual and send your counts to [email protected] (not to address in ageing guide!). 📄 Download ageing guide: bit.ly/3HQdb5M

I recommend the well-illustrated blog post by Alaska Audubon on our recent paper in Global Change Biology led by Eveling Tavera Fernandez and Kirsty Gurney about the effects of climatic variation on timing of nesting in arctic shorebirds. ak.audubon.org/news/arctic-...

Shorebird chicks are hatching here in Greenland! This year, egg predation has been intense, especially on Turnstone clutches, so every successful hatch feels extra special. This Turnstone male brooded its four chicks right next to my phone. A bit too close maybe...

#sanderling copulation is a balance act. It always ends with the male fiercely pecking the neck feathers of the female. I have no clue why.

#sanderling copulation is a balance act. It always ends with the male fiercely pecking the neck feathers of the female. I have no clue why.

New PhD position in our group! Join us to study gull foraging ecology at sea using GPS and accelerometry data! You will be working here Amsterdam Movement Ecology group under supervision of @judyshamounb.bsky.social, @rooskentie.bsky.social and me. Apply here werkenbij.uva.nl/en/vacancies...

Wader sounds: What did you hear? NEW PERSPECTIVE by Edward H. Miller, Terje Lislevand, and Pavel S. Tomkovich www.waderstudygroup.org/article/19261/ #waders #shorebirds #ornithology #OpenAccess

Are you joining us in Groningen? This year's conference will be in The Netherlands 🇳🇱 #IWSG2025 Registration closes 30th June Details here ⬇️ www.waderstudygroup.org/conferences/...

In NE Greenland today, I watched a male Sanderling give his all to impress a female-- song and calls, slowmotion dive and nest scraping. She was not impressed and calmly kept foraging. #shorebirds never cease to amaze.

WAT HEBBEN WE ONZE GROND AANGEDAAN? Eerder vonden onderzoekers van www.birdeyes.org hoge concentraties #PFAS in levers van #grutto's, vooral in broeders kruidenrijke weilanden (www.sciencedirect.com/science/arti...). Ook eieren blijken rijk bedeeld. Het schadelijke PFAS zit dus inmiddels overal.

Millions of birds nest in the Arctic each year. But did you know they’ve been doing this since the Cretaceous? Can’t believe I finally get to share that our paper on the birds of the Prince Creek Formation is out in ‪@science.org (and on the cover)! 🧵 Art: Gabriel Ugueto ‪@serpenillus.bsky.social

The best welcome in a new house I ever got....

Sanderling flocks - passing through! wadertales.wordpress.com/2019/10/04/t... Research by @jeroen-reneerkens.bsky.social #ornithology

Seen a Sanderling recently? Some of the birds in the UK in May will have left Namibia, flown north along the Atlantic cost and crossed the Sahara. Long way still to go to get to Greenland! More here: wadertales.wordpress.com/2019/10/04/t... Research: @jeroen-reneerkens.bsky.social #UKbirding

Latest WaderTales blog reviews what we are learning from tracked waders/shorebirds: wadertales.wordpress.com/2025/05/06/m... But are researchers making full use of the data that birds collect for them? #ConservationScience🌍

Migratory Birds Advance Spring Arrival and Egg‐Laying in the Arctic, Mostly by Travelling Faster 📄

In May, lots of waders are still migrating through UK/Ireland. Sanderling from Africa and heading for Greenland. Many will stop off in the UK to refuel. Blog based on fascinating research by @jeroen-reneerkens.bsky.social wadertales.wordpress.com/2019/10/04/t... #ornithology

📄 New Paper! Migratory Birds Advance Spring Arrival and Egg-Laying in the Arctic, Mostly by Travelling Faster doi.org/10.1111/gcb.... @globalchangebio.bsky.social @mpi-animalbehav.bsky.social @animaltracking.bsky.social

🚨Publication in @globalchangebio.bsky.social by Lameris et al. → Early snowmelt = earlier egg-laying, but only 2 waterfowl arrived earlier. → Over time, most arrived earlier—regardless of snowmelt or laying. → Why? Faster migration: shorter stopovers = earlier arrival. 🔗 doi.org/10.1111/gcb....

Every year, fewer #WhiteStorks cross the Straits of Gibraltar on their annual migratory journey. In this paper, we unveil the mechanisms driving the recent and rapid loss of their migratory behaviour. 👉https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2656.70035

Our milestone #SIBES publication is out! We describe methods and share data of this huge sampling effort. We hope it will stimulate research, forge collaborations, and allow evidence-based management of the UNESCO #waddensea. Read the paper here: www.nature.com/articles/s41... #macrozoobenthos

We've reached 1.5°C global warming. With current policies, we're heading for a catastrophic 2.7°C warming. A new review paper in Science shows: this would change the Arctic 'beyond recognition', with knock-on effects (like rising seas) around the world. 🌊 www.science.org/doi/10.1126/...

This Registered Report masterpiece just dropped at BMC Biology, brilliantly led by a great team with the help of 300+ analysts & reviewers Same question, same data: go figure! tl;dr: Substantial heterogeneity among results comes from differences among analytical choices 🔗 doi.org/10.1186/s129...

There are many studies of phenology of components of the tri-trophic tree-insect-bird system, a useful model for understanding effects of climate change. But how do different measures relate to each other? We compared 5 methods, deriving 9 metrics, across 6 tree spp www.biorxiv.org/content/10.1...

Exciting personal news! 🎉 From March 1st, I'll start as a tenure-track researcher in Arctic avian ecology at Aarhus University. 🐦❄️ I’ll continue my fieldwork in @zackenberg.bsky.social Greenland and embark on new adventures in Svalbard. Can’t wait to get started! #ArcticEcology #ornithology

Out in @animalecology.bsky.social and open access, this beauty showing that older common terns navigate more efficiently than younger ones and that efficient navigation leads to a reduced migration duration and earlier arrival at the breeding and wintering grounds: doi.org/10.1111/1365...

A wonderful team effort to characterize the actions of HSD17B2, a gene that helps some #ruff males to dial down their testosterone levels, got published @science.org (1/n)

The Influence of Migration Timing and Local Conditions on Reproductive Timing in Arctic-Breeding Birds | doi.org/10.1002/ece3... | Ecology and Evolution | #ornithology 🪶

New impulses for the monitoring of migratory waterbirds along the East Atlantic Flyway flyway.waddensea-worldheritage.org/innovations-...

Lengths of Stay and Stopover Strategies of Western Sandpipers During Migration at Two Sites in British Columbia, Canada | doi.org/10.1002/ece3... | Ecology and Evolution | #ornithology 🪶

Diet study of #arctic #shorebird chicks from #Greenland @zackenberg.bsky.social using DNA barcoding. Diptera are an important component of Arctic shorebird chick diets in NE Greenland.

New paper out in @rsocpublishing.bsky.social! Research from our group shows that males of the polygynous ruff visit many potential breeding sites within a breeding season, travelling up to 9000 km and visiting up to 23 different sites! royalsocietypublishing.org/doi/10.1098/... 1/7

Some polygamous birds blur the classic pattern of birds migrating at the end of the breeding season. Ruff males (without parental care) may visit multiple breeding sites throughout the species' range in the same year. 👇 Marked birds in the Netherlands. royalsocietypublishing.org/doi/10.1098/...

NEW RESEARCH Habitat Changes at the Local Scale Have Major Impacts on #Waterfowl Populations Across a Migratory Flyway 📄 https://buff.ly/408ggEs #wetlands #waterbirds #habitatloss

2️⃣ Migration patterns are set in year one. Two Sanderling from the same brood can end up in different continents: wadertales.wordpress.com/2019/10/04/t... #ornithology