Category: Research

IWSG: Where the waderologists of the world can find like-minded wader-people!

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The International Wader Study Group (IWSG) is a world-wide organisation with over 450 members who are interested in learning more about waders (or shorebirds for those outside of Europe) from the birds themselves and from collaborating with others. With the closing date for the next IWSG conference coming up, Katharine Bowgen gives some background to the group and to their conferences. The next conference will be held in September 2024 in Montpellier, France. Bookings for the conference close on 16 June and the abstract submission deadline is 17 July. For more details on the next conference, see the conference information on the IWSG website.

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A group of people sitting on chairs on a beach, processing shorebirds.

Delaware 2024: 26 May – 1 June

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Sunday 26 May

On the first day of week three in Delaware, Rob Rob, Chantal, Katharine and Kirsty left for Philadelphia to begin their journey home to the UK. They made the most of their last morning however, squeezing in one more resighting visit to Mispillion Harbor!

On their way to Osprey via Cedar Beach with Flo, a new volunteer got stuck in the deep mud. Showing their quick thinking and fantastic team strength, the Brits rallied together to undertake a quick and effective two-pronged rescue with help coming by boat and car/foot. Well done all!

Not many flags were spotted in Mispillion, it would seem many shorebirds were already migrating northwards. There is also the thought that more are heading to feed in New Jersey, where there are areas for roosting closer to the feeding sites. The evening harbour survey was cancelled due to an approaching storm, but this did not stop Ryan and Guy from cooking up an epic meal on the BBQ.

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Delaware 2024: 19-25 May

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Sunday 19 May

Our second week in Delaware began warm and sunny and everyone made a great effort to survey the beaches over the morning. Two Mispillion surveys were completed as usual and, after the afternoon boat trip, Nigel, Richard, Guy and Ema returned very happy with lots of flag resightings. Poor Graham, however, did not have such joy on Osprey. Nigel and Richard had found there to be a decent number of Sanderling still on Back North and so began planning a catch.

Many more rings were opened throughout the day in anticipation of a big forthcoming catch. Ryan and Flo baked veggie lentil lasagna, using layered potatoes instead of pasta (which surprisingly worked very well!) and a couple of batches of flapjack – this really didn’t last long, 24hrs at most!

Nigel led a thorough evening team talk to go over plans for a Back North catch the next day.

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Delaware 2024: 11-18 May

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Saturday 11 May

After an early start and two relatively smooth flights, eight of the WWRG team members made it to Philadelphia airport. There we met Katharine and Ema and began our drive down to Delaware. All buzzing to be back, except Chantal, who was even more excited as it was her first time on the project! This year we are on Slaughter Beach again, based in one large house with a smaller one nearby for extra sleeping space. Once everyone had paid a long-awaited visit to Mispillion Harbour, Kirsty, Jacquie and Flo made tomato pasta with salad for the jet-lagged, hungry team. Dave joined us for dinner and there was much laughter into the evening. This was definitely a happy birthday for Ema (10th May) and Flo (11th).

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A groups of Curlew feeding in shallow water. Three of the birds have white, uniquely marked flags on their legs, enabling researchers to identify them.

Curlew and Bar-tailed Godwit feeding locations on The Wash: do you like your worms with or without salt?

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If you have taken part in WWRG winter fieldwork over the past twelve years, you know that one tide of each fieldwork weekend is dedicated to resighting colour-marked birds. We have been applying leg flags to Bar-tailed Godwit since 2010, and Curlew since 2012, with over 200 people reporting one or more flag sightings. We use individual leg flags to both add to the survival data generated from metal rings (see Cook et al. 2021) and to look at how individual birds use the Wash and the surrounding area. Our first paper analysing how birds move around within the Wash has just been published in the journal Wader Study (Pell et al. 2023).

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