The IWSG is run by a group of volunteers distributed around the globe and with a wealth of experience in wader research and conservation issues.
Click here for a list of former members of ExCo
Chair - Yvonne Verkuil (Netherlands)
Yvonne joined the ExCo in 2007 and has been a member of the WSG since she started to study stopover ecology of Red Knots with Theunis Piersma in 1990. Since then the wader world has sucked her in and she has studied the stopover behaviour and population genetics of a variety of waders. She is currently at the University of Groningen in the Netherlands.
Vice-Chairman - Ole Thorup (Denmark)
Being among his favourite birds since he started birding as a kid in the late 1960es, Ole started working with shorebirds at Tipperne, Denmark in 1981. Since then his main topic has been breeding meadowbirds and grassland management in Denmark and the Baltic. A breeding biology study of the endangered Baltic Dunlin was begun in 1987 and is still active. In the past he also studied breeding Arctic shorebirds in northern Sweden, Norway and NE Greenland. Ole became a member of the EXCO in 1993, Project Coordinator of the group 1996-2008 and compiled the publication Breeding Waders in Europe 2000 1997-2004. Now he is working as a freelancer in a small consultancy company (Amphi).
General Secretary - Gregor Scheiffarth (Germany)
After working on breeding Oystercatchers for some years, Gregor switched to stopover ecology of Bar-tailed Godwits in the Wadden Sea for his PhD. His major interests lay in foraging ecology, migration ecology, and ecosystem processes. Gregor joined the Wader Study Group in 1991 and became General Secretary in 2004.
Treasurer - David Turner (UK)
David was co-opted onto ExCo at the end of 2007 to take over as treasurer from the AGM in October 2008. An enthusiastic amateur, David is leader of the Humber Wader Ringing Group on the east coast of the UK, concentrating on the relationship between feeding and roosting sites on the estuary. Information and data provided by the group will contribute to the overall monitoring of the estuary with particular relevance to key environmental and industrial/commercial developments
Membership Secretary (interim)- Rick Simpson (UK)
Rick is acting Membership Secretary since early 2015. He is candidate elect for the position.
Membership Secretary (interim) ~ Elis Simpson (UK)
Elis is acting Membership Secretary since early 2015. She is candidate elect for the position.
IWSG-Wetlands International Liaison Officer ~ David Stroud (UK)
Editor-in-Chief, Wader Study ~ Humphrey Sitters (UK)
Humphrey is the chief editor of Wader Study, and was the editor of the Bulletin from 2001. For 25 years he tried to combine his interest in waderology with being a lawyer, but in 1990 gave up the unequal struggle and is today involved in a variety of wader studies. These have included the non-breeding ecology of Dunlins and Oystercatchers in England, waders in NW Australia, plus Knots, Turnstones and Sanderlings in the West Atlantic flyway. He is slightly ashamed that he has spent so much time on well-studied species because he often says that more attention should be given to the world’s “obscure” waders. That is why he is happy that the photo shows him holding a Magellanic Oystercatcher, one of the least known of the world’s oystercatchers, in Tierra del Fuego.
Series Editor, IWS ~ Piet van den Hout (Netherlands)
Piet is Editor of International Wader Studies, the IWSG’s series of ‘special publications’.
Conference Coordinator ~ Triin Kaasiku (Estonia)
Triin joined the ExCo in 2015 as a Conference Coordinator. She is a Masters student in Biology at the University of Tartu, Estonia. Her main interests are habitat requirements of meadowbirds, meadow management and seminatural habitats.
Projects Coordinator ~ Jannik Hansen (Denmark)
Jannik joined the ExCo in 2007. In 1998 he started his first wader work; a masters thesis on the breeding strategy of the Purple Sandpiper in Svalbard. Next he worked as a fieldworker on a Lapwing breeding biology study in Sweden. Currently he is employed by the National Environmental Research Institute, University of Aarhus in Denmark, working with ecological monitoring (incl. waders) at Zackenberg in Norhteast Greenland. He took over the role of Projects Coordinator in autumn 2014.
Publicity Officer ~ Jorge S. Gutiérrez (Netherlands/Spain)
Colour-mark Coordinator (Scheme issuing) ~ Jim Wilson (Norway)
Jim’s interest in waders was awakened by the Merseyside Ringing Group in 1965-1968 when he and his mates began marking waders on the Dee Estuary. At the same time he became a member of the Wash Wader Ringing Group and in 1972 a member of the Wader Study Group. In the 1970s he was involved in the Iceland and Mauritanian expeditions. He took his Masters on the breeding ecology of waders on the Hebrides in 1976. Jim worked on and off with waders for the next twenty years. In 1996 he moved to Australia and he worked full time on waders and wetlands there for five years. He was also chairman of the Australasian Wader Study Group from 1998 to 2001, and in that capacity he first came onto the ExCo. By profession Jim is a Civil Engineer and still works in the construction industry, and thus he is one of the last of the amateurs.
Colour-mark Coordinator (Sightings) ~ Simon Feys (Belgium)
Simon started serious birding in 1996, and read his first colour-ring (a Shag from Scotland) in 2001. Since that moment, he has been a dedicated ring-reader and has taken the first steps to become a ringer himself. For the IWSG, he has been the SPEX for Dunlin and Black-winged stilt for some years now, and will continue doing this. In his professional career, he works for the Belgian Research Institute for Nature and Forest where he investigates the effects of agro-measures on farmland birds. Simon took over the coordination of the IWSG-sightings-inbox from Henk van Huffelen in 2013.
Yahkat Barshep (South Africa/Nigeria)
Yahkat Barshep in the African representative in ExCo. Currently, Yahkat has two research interests (1) investigating population dynamics of migratory (Palearctic) and resident African waders and (2) the patterns of moult particularly in relation to breeding and migration and the consequences of environmental change on this trait.
Mark Collier (Netherlands)
Mark ran the IWSG Colour-mark Register from 2003-2009 and became a member of ExCo in 2008. Mark’s experience of ringing waders began in the UK and continued through volunteering in projects in Iceland, France, USA and the Netherlands. He has previously worked for the BTO, both in the Ringing Unit and the Wetland and Coastal Ecology Unit. Mark now lives in the Netherlands where he works as an ecologist for Bureau Waardenburg.
Patricia González (Argentina)
Patricia is the representative for South America in ExCo.
Simon Gillings (UK)
Since counting them on the Wash for the Birds of Estuaries Enquiry, Simon has been interested in waders. He works at the British Trust for Ornithology on a range of projects including the 2007-11 Bird Atlas, habitat and population studies of Golden Plovers and Lapwings, and stopover ecology of Red Knot. Simon joined the ExCo in 2007 and sat on the editorial board of the Bulletin and acted as IWSG Webmaster until 2010. He was Projects Coordinator from 2008 to 2014.
Vojtěch Kubelka (Czech Republic)
Vojtěch has been keen on shorebirds since 2007, when he renewed the Wader Study and Protection Group (SVOB) in the Czech Republic. Then he became a member of IWSG in 2009 and a member of ExCo in 2014. He is generally very interested in the evolutionary ecology of shorebirds and his current PhD study (Department of Ecology, Charles University in Prague) covers the topic: Coping with predation in reproductive strategies of waders. So far, he has done the majority of his fieldwork with Northern Lapwing in the Czech Republic and several wader communities elsewhere (Barrow in Alaska, Egypt, Chukotka and Baikal lake in Russia).
Jutta Leyrer (Germany)
Jutta joined ExCo in 2007, and was Conference Coordinator until 2015. She did her PhD on the timing of northward migration of a long-distance migrant wader, the Red Knot, at the NIOZ (Royal Netherlands Institute for Sea Research) and the University of Groningen. Her project allowed her to spend several months each year in West Africa’s most important wintering area for waders, the Banc d’Arguin, Mauritania, then following the Knots to their stopover site on the French Atlantic coast and the German Wadden Sea. After that switched flyways and hemispheres and studied the “wintering” behaviour of waders in Australia at Deakin University, Geelong. In 2014 she returned to work on the Banc d’Arguin, Mauritania, and currently she is based at NABU, in Germany.
Magdalena Remisiewicz (Poland)
Magda has been in the ExCo since 2004 and is a member of the Editorial board of the WSG Bulletin. She did a post-doc at the ADU at the University of Cape Town, and she is the Head of the Bird Migration Research Station at the University of Gdańsk in Poland. She is a ringer of the WRG KULING and Operation Baltic. Magda has coordinated project Tringa glareola 2000. Her research focuses on migration and moult strategies of waders and passerines between Eurasia and Africa.
Pavel Tomkovich (Russia)
Pavel is getting to be an ancient member of the ExCo being first elected in 1992. Since then he fulfils a link between the IWSG and wader enthusiasts of several countries of the former USSR as a chairman of the Working Group on Waders in CIS. He functioned as a regional coordinator in several IWSG projects, coordinates the Arctic Birds Breeding Condition Survey initiated by the IWSG and is a member of the editorial board of the Bulletin. Pavel works for the Zoological Museum of the Moscow State University having main interests in Arctic waders, mostly Calidridinae sandpipers.
Nils Warnock (USA)
Nils has been a member of the WSG since 1987. He joined the executive committee in 2008 as a North American representative and sits on the editorial board of the WSGB. He oversaw the Wetlands Division of PRBO Conservation Science from 2000 – 2008. Presently, Nils is the Executive Director of Audubon Alaska located in Anchorage, AK. Current shorebird research focuses on migration of Pacific Basin shorebirds.