Publications

Grutto landschap project: Eindrapport 2025

18 August 2026

Egbert van der Velde, Rienk Fokkema, Georgette Lagendijk, Renée Veenstra, Theunis Piersma, Taylor Craft, Mohamed Henriques, Marie Stessens, Luis Barba Escoto, Michella Ligtelijn, Wytse de Haan, Eldar Rakhimberdiev, Wouter Vansteelant, Ruth Howison, Aafke Saarloos, Jos Hooijmeijer

In 2020 is het langjarige grutto-onderzoek in Zuidwest-Friesland omgedoopt tot het “Grutto Landschap Project” en aanzienlijk uitgebreid van een demografische studie van groot formaat naa...

Black-tailed Godwits (Limosa limosa) in southern Iberia, habitat description and finding colour marked birds from 2 – 27 February 2025

7 August 2026

Jos Hooijmeijer, Willem Brandhorst, Wim Tijsen, Maarten Hotting, Kees de Jager, Jouke Altenburg, Bob Loos, Theunis Piersma

In this expedition from 2 to 27 February 2025 we visited the most important areas during northward migration for Black-tailed Godwits in southern Spain and Portugal. Our aim was to resight i...

Research on the shorebirds of the Banc d'Arguin, Mauritania / Recherche sur les limicoles du Banc d’Arguin, Mauritanie

7 August 2026

Job ten Horn, Theunis Piersma, Petra de Goeij, Roeland Bom, Anne Dekinga, Luc de Monte, Tim Oortwijn, Bob Loos, Bram Twijnstra, Hacen E.M. El-Hacen

Du 11 au 30 novembre 2025, une équipe de neuf personnes de l’Institut Royal pour la Recherche sur la Mer des Pays-Bas (NIOZ) est rendue dans le Parc National du Banc d'Arguin pour étudie...

NANPU 2026 – update 4

4 June 2026

Chris Hassell, Katherine Leung

And already it is the end of the month’s work at Nanpu. I feel these Updates are all rather similar but that is one of the strengths of our work here. The repeated visits over 20 years. Wh...

NANPU 2026 – update 3

1 June 2026

Chris Hassell, Katherine Leung

OK, let’s make the opening a bit more upbeat. The weather has been glorious, for 3 days. The White-winged Black Terns feeding over the salt ponds are nothing but stunning. As previously...

NANPU 2026 – update 2

27 May 2026

Chris Hassell, Katherine Leung

Well, whatever the situation, field work is better than office work. But the truth is we are just starting to get a bit frustrated. The first 3 days were great, but it has only got more dif...

NANPU 2026 – update 1

15 May 2026

Katherine Leung, Chris Hassell

And so, here we are again. Global Flyway Network’s (GFN) 20th visit (2007 – 2026) to the bird-rich Luannan Coast. Where we concentrate our work on the ‘Nanpu mudflat’. And GFN’s 18...

Bohai Bay northward migration report 2025 (Chinese translation)

10 November 2025

Katherine Leung, Chris Hassell, Weipan Lei, Zhengwang Zhang, Theunis Piersma

摘要 今年是全球迁飞网络(GFN)在中国渤海湾滦南海岸开展野外工作第十八年,克瑞斯·哈塞尔 (Chris Hassell)、梁嘉善(Katherine Leung)和刘洋...

Bohai Bay northward migration report 2025

7 August 2025

Katherine Leung, Chris Hassell, Weipan Lei, Zhengwang Zhang, Theunis Piersma

This is the eighteenth year for Global Flyway Network (GFN)’s fieldwork at the Luannan Coast, Bohai Bay, China. Chris Hassell, Katherine Leung and Yang Liu carried out the fieldwork for 5 ...

Spring migration work in Nanpu for 2025 (update3)

5 June 2025

Chris Hassell, Katherine Leung

“The Luannan Coast is an important staging site of international significance for two subspecies of Red Knot in the EAAF . ”This is the statement we emphasize in our report every year. ...

Spring migration work in Nanpu for 2025 (update2)

19 May 2025

Chris Hassell, Katherine Leung, Yang Liu

After reading the last update you probably got the impression that we were wandering around birdwatching non-stop. Well, there was a bit of that for sure. But then the tides turned in favou...

Spring migration work in Nanpu for 2025 (update1)

19 May 2025

Chris Hassell, Katherine Leung, Yang Liu

Let’s start with some thanks to people for making the 18th year of GFN scanning at Nanpu happen. As usual, Beijing Normal University via Prof. Zhengwang Zhang and Dr Weipan Lei for support...

Grutto landschap project: Jaarverslag 2024

5 March 2025

In 2020 is het grutto-onderzoek in Zuidwest-Friesland omgedoopt tot het “Grutto Landschap Project” en aanzienlijk uitgebreid van een demografische studie van groot formaat naar een voed...

Black-tailed Godwits (Limosa limosa) in southern Iberia, habitat description and finding colour marked birds from 1 – 26 February 2024

6 February 2025

Jos Hooijmeijer, Jacob Jan de Vries, Wim Tijsen, Maarten Hotting, Willem Brandhorst, Bob Loos, Marie Stessens, Arne van Eerden, Lisa Rose Haaksma, Kees de Jager, Wouter Vansteelant, Theunis Piersma

In this expedition from 1 to 26 February 2024 we visited the most important areas during northward migration for Black-tailed Godwits in southern Spain and Portugal. Our aim was to resight i...

Black-tailed Godwits (Limosa limosa) in southern Spain; habitat description and finding colour marked birds from 1 – 9 October 2024

6 February 2025

Jos Hooijmeijer, Delip K. Das (Bisharga), Theunis Piersma

In this expedition from 1 to 9 October 2024 we visited the most important areas for wintering Black-tailed Godwits in southern Spain. Our aim was to resight individual colour marked birds, d...

Bohai Report 2024

6 February 2025

Katherine Leung, Chris Hassell, Zhengwang Zhang, Theunis Piersma

Most of the Yellow Sea intertidal mudflats are critical feeding areas for migratory shorebirds on their journeys to and from their breeding and non- breeding grounds. The areas used by migra...