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Deadline for IWSG Small Projects Grant fast approaching: 1st December is the last chance to apply for a IWSG Small Projects Grant! Projects run by IWSG members can be supported with up to 1500 euros. Describe your project, the relevance, the timeline and the budget, and submit it. Then we will read it and get back to you no later than 1st May 2024. Since 2016, the International Wader Study Group annually funds small projects to support wader studies that otherwise will not go ahead. visit the IWSG Small Projects Grants pages: https://www.waderstudygroup.org/projects/small-grants/ Regards IWSG Small Project Grant committee [caption id="attachment_17579" align="aligncenter" width="330"] The grant is ideal for supporting small fieldwork projects. Ten grants have been awarded since 2016. Explore them here : https://www.waderstudygroup.org/projects/small-grants/.[/caption]   Featured image: Field work in Venezuela, ©Carolina Davila.

The IWSG is happy to announce the winner of IWSG competition for tracking studies which took place during our 2023 annual conference (Sylt, Germany 29/09/23 — 03/10/23). Dr Afonso Rocha, from the University of Extremadura, Spain, won 15 GSM MINI 4G Druid Trackers to study "Temperature Exodus" using Black-winged Stilt in the Tagus estuary, Portugal. read more about the project "Temperature Exodus" of Alfonso Rocha here: Temperature_Exodus_AR - Afonso Rocha. [caption id="attachment_17562" align="aligncenter" width="330"] "Black-winged-stilt is an excellent model species to investigate the effects of temperature on avian decisions as they breed across a vast range of habitats from freshwater to hypersaline environments" explains Dr Afonso Rocha from the University of Extremadura, Spain.[/caption] The Price is funded by Druid Technology Co., Ltd. It includes one year of free data service.   Congrats to Alfonso Rocha!   Featured image: Dr. Alfonso Rocha from the University of Extremadura, Spain.

IWSG is happy to draw your attention to this new project: The Global Wader Tracking Data Project. The GWTDP is intended to work as a directory of tracking studies. Details from the field are recorded: which species, sexes, ages; where and when, using a uniform data format across contributing studies. We encourage users to store their data in a repository such as Movebank, and can help with uploading historical data. The GWTDP is a new, community-led initiative aiming to become a definitive register of all wader/shorebird tracking projects currently underway or completed. Read more on the project website here.   Featured image: Sat-tagged Red Knot ©Rob Buiter

Following the success of our inaugural t-shirt competition in 2021, and at the request of a number of members we are proud to let you know that we'll be running a new t-shirt competition but this time for our younger members! We'd like all young waderologists to enter in their best wader designs to be seen on t-shirts and bags on our Teemill website to raise money for supporting the IWSG in its activities (https://waderstudygroup.teemill.com). There will be two age categories - under 11s and 11-17 year olds and as with the last competition we encourage all original and unique artwork but with the consent of the entrant's parent or guardian. The winners of the competition will win a t-shirt with their design PLUS a year’s family membership to IWSG whilst the runners up will get a tote bag with their design. All shortlisted designs will be included on our Teemill shop and the winner decided by the attendees at the IWSG conference in Sylt in September 2023 All proceeds from the sale of bags or clothing will be used to support the running of IWSG. Competition Rules are below and any queries please send them to membership@waderstudygroup.org.   Competition Rules: - Open to entrants under the age of 18 who, with their families, are part of the wider wader/shorebird community with permission of a parent or guardian - Any design will be accepted as long as it has a wader on it, space for the IWSG logo (which can be small) and on a white background - Meaningful text regarding waders will be considered for inclusion. - Enter whichever artistic medium suits – pencil and paper, water colours, PowerPoint, Photoshop but you will need to be able to scan the final image cleanly. Lines must be thick enough to see when printed on fabric (~2mm+) How to enter: - Parent/guardian to email a scan of the final design with the young person’s first name & the subject line “IWSG T-shirt Comp”  to membership@waderstudygroup.org - Including a line of consent from the parent/guardian for the child's name to be used - Up to 3 entries per person are allowed and should be original and unique artwork - Closing date – midnight 23:59 GMT 14th September 2023 (submission deadline updated!) Full Terms can Conditions IWSG design a tshirt competition_TandC_2023

by Deborah Buehler originally published in Wader Study 130(1) The beach. For many humans, it means relaxation and recreation. It’s a place to fish, or walk the dog, or sunbathe, or swim. For many shorebird species, the beach is necessary for survival and reproduction. Unfortunately, beaches are not always tranquil. Shorebirds can be attacked by birds of prey or flushed by human beachgoers and their pets. How much does this happen? What causes the disturbance? Can anything be done to reduce the harm? In this issue of Wader Study, Khwaja and colleagues harness the power of citizen scientist volunteers to address these questions. Using a standardised monitoring protocol, they collected data on the disturbances that shorebirds face when resting on the beaches of Roebuck Bay.¹ Roebuck Bay is a large, tropical embayment in north Western Australia, south of the town of Broome. It is an important non-breeding site on the migration flyway extending from Arctic Russia and North America, along the east coast of Asia, to the southern limits of Australia and New Zealand (the East Asian-Australasian Flyway). Researchers at the Broome Bird Observatory regularly record 29 shorebird species supported by the bay. Because most of these species are migratory and breed in the northern hemisphere, the number of shorebirds in the bay varies greatly between roughly 20,000 individuals through the austral winter (dry season) to roughly 100,000 in the austral summer (wet season). Recently, populations of the migratory species in particular have declined alarmingly within the flyway. Although these declines have been linked to habitat loss in other parts of the flyway (specifically the disappearing mudflats of the Yellow Sea), understanding what happens in Australia improves the chances that the birds will be helped rather than further hindered when they reach the beaches of Roebuck Bay. The tidal mudflats in Roebuck Bay are extensive, and low spring tides can expose around 175 km² of mudflats where shorebirds feed. However, such a high tidal range also means that there is a four-hour period around high tide when the mudflats are totally submerged. During these times, the birds need safe places—called high tide roosts— to rest. [caption id="attachment_17002" align="aligncenter" width="330"] Mixed shorebird flock roosting on Roebuck Bay’s northern shores at high tide. (photo: Mattea Taylor)[/caption] Finding a good high tide roost is not easy. Optimally such sites should be close to the feeding areas and have clear lines of sight to spot approaching danger. In tropical areas like Roebuck Bay, these roosts must also be close to the water during daytime high tides to prevent heat stress. When a good site is found, it makes sense to rest and conserve energy for the duration of high tide, but undisturbed roosting isn’t always possible. Disturbance is usually defined as the disruption of normal activities caused by an animal’s response to an encounter with an external stimulus. Khwaja and colleagues chose alarm flights—when shorebirds take off steeply and rapidly turn to avoid perceived danger—to quantify disturbance. Models suggest that alarm flights are around three times more energetically costly than ‘commuting’ flights when birds move between areas undisturbed.^2,3 The researchers then enlisted Broome Bird Observatory (BBO) staff and trained volunteers to conduct systematic watches on five beaches in Roebuck Bay. These study sites represented a range of disturbance levels and had been regular roost sites for shorebirds since at least the late 1990s. Observers worked in pairs when possible, but when volunteer availability was low, experienced bird watchers could work alone. Teams performed watches at each of the five study beaches, simultaneously, sitting close enough to see any shorebirds present, but distant enough not to disturb them. There were two watch days per month from May 2005 until April 2006, and from August 2019 until July 2020, with one watch-day falling on a weekday and the other on a weekend. To gauge how often the birds were disturbed, observers counted all alarm flights made in the four-hour high tide period. They also estimated the average amount of time the birds spent in flight, by performing a short scan every 10 minutes throughout the watch and noting the proportion of birds in flight. The researchers then calculated the average proportion flying per minute and multiplied by the 240 minutes in a four-hour watch. Finally, they tried to determine what caused the alarm flights and recorded details of any visits made by people to the beaches. [caption id="attachment_17001" align="aligncenter" width="330"] Volunteers observing shorebirds during a watch at Crab Creek Beach. (photo: Jane Taylor)[/caption] The observers completed 214 watches over the two years: 96 in 2005–2006, and 118 in 2019–2020. Birds were present on the beach for 196 of the 214 watches and when birds were present, 2020 alarm flights were recorded: 918 in 2005–2006, and 1,102 in 2019–2020. On average the birds were disturbed 2.44 times per hour and the alarm flights usually involved all, or nearly all, of the birds present on the beach. Across all watches, the researchers estimated that each bird spent about 2.86 minutes per hour in flight. Several factors affected both the number of alarm flights and the estimated time in flight. First, more alarm flights occurred, and birds spent significantly longer inflight, in the dry season (winter) than the wet season (summer). This makes sense because, in the dry season, birds of prey are more abundant in Roebuck Bay, Broome’s population swells with tourists and seasonal workers, and the access road to the northern beaches (study sites) is less likely to flood. Location of the beach was also associated with the number of alarm flights and time spent in flight, but the effect depended on the year of study. This interaction between location and year means that efforts to mitigate disturbance will need to be tailored to the circumstances at individual beaches over time. Finally, more alarm flights were noted when more birds were present on the beach, perhaps because the presence of more individuals increased the likelihood that one of them would detect an actual or perceived threat. The researchers were able to identify the apparent cause of disturbance for 60% of alarm flights in 2005–2006, and 71% in 2019–2020. Most alarm flights were triggered by birds of prey (raptors) in both years and it is possible that they may have caused even more alarm flights than recorded. In both years, 29 to 40% of alarm flights could not be traced to a stimulus and birds of prey are more likely than other stimuli to have been missed by observers. For example, a brief, silent appearance by a raptor behind a dune is likely to be missed by an observer and can be enough to provoke an alarm flight. Aircraft are noisier and people disturbing shorebirds usually more obvious. Human visitors were a less frequently identified cause of disturbance than birds of prey, but still accounted for about 20% of the alarm flights with an identified stimulus. Humans were most often seen walking or fishing on the beach, and walkers were more likely to alarm shorebirds (37% or 33 of 90 occasions) than people fishing (21% or 35 of 167 occasions). This is likely because walkers are mobile while fishers are stationary. However, observations from this study also suggest that fishing might have an indirect effect on disturbance because scraps left by human visitors attract birds of prey to beaches. The researchers suggest various ways to mitigate human-caused disturbance in Roebuck Bay. Examples include: public awareness campaigns about the importance of not disturbing shorebirds on the beach, information for fishers on the importance of not leaving scraps or bycatch on beaches, and even installing floating roost platforms on beaches where human use is already high, to increase available habitat for birds without reducing accessibility to people. The biggest challenge in this study, and a challenge for anyone attempting to measure the impact of disturbance on wild animals, is that is that researchers can only assume the consequences of an observed behaviour but cannot directly measure those consequences. Khwaja and colleagues were interested in the energetic costs of disturbance on shorebirds but acknowledge that they made no estimate of the true energetic cost of alarm flights, nor was doing so possible with the data they collected. They estimated a response to disturbance and used that as an index of the actual energetic costs. The use of indices is common but requires assumptions and raises the question of whether the exhibited behavior really means what we think it does. In the case of alarm flights in Roebuck Bay, the assumption is that alarm flights are costly² and that when the cost of multiple alarm flights exceeds the cost of a “commuting flight” to a “less disturbed” roost site, the birds will go elsewhere.³ Khwaja and colleagues estimated that shorebirds exceeded this threshold during the winter at all beaches studied in 2005–2006, and at two of the five beaches in 2019–2020. Yet, some birds clearly continue to roost on highly disturbed beaches in winter. What does it mean when a bird stays put? In many studies, staying is interpreted as low disturbance, but is that always the case? Perhaps the birds also experience disturbance at the nearest alternative roost. Perhaps they stay put and endure the disturbance—which also has costs—because they have nowhere better to go.⁴ This study by Khwaja and colleagues is impressive because the energy of volunteers was successfully harnessed in a standardised citizen science monitoring protocol. In this way, the researchers were able collect robust data on shorebird alarm flights and their possible causes, for two full years fourteen years apart. As we move towards summer and beach season in the north, in Roebuck Bay, the austral winter beach season is also beginning. This study is a nice reminder that though we can’t yet directly measure energetic or fitness costs of disturbing shorebirds, we can do our best to minimize our part in it.   ¹ Khwaja, N., C.J. Hassell, M.J. Taylor, J.A. Taylor, J. Lewis & D.I. Rogers. 2023. Repeated monitoring suggests shorebirds are disturbed consistently during winter at a globally important roost in tropical Australia. Wader Study 130(1): 38–51. ² Nudds, R.L. & D.M. Bryant. 2000. The energetic costs of short flights in birds. Journal of Experimental Biology 203: 1561–1572. ³ Rogers, D.I., T. Piersma & C.J. Hassell. 2006. Roost availability may constrain shorebird distribution: exploring the energetic costs of roosting and disturbance around a tropical bay. Biological Conservation 133: 225–235. ⁴ Gill, J.A., K. Norris & W.J. Sutherland. 2001. Why behavioural responses may not reflect the population consequences of disturbance. Biological Conservation 97: 265–268. PDF of this article   Featured image: Bar-tailed Godwit Limosa lapponica, Orielton Lagoon, Tasmania, Australia. © J. J. Harrison.

The Doñana National Park in the Guadalquivir basin in southern Spain faces an unprecedented challenge! Despite enjoying all possible levels of legal protection, Doñana National Park and its surrounding natural areas are under severe threat due to decades of (ground)water overexploitation, the effects of which are aggravated by a severe ongoing drought. Adding insult to injury, members of the Andalusian Parliament are pushing a new law proposal to regularize almost 2000ha of illegally irrigated land in the area. As international bird migration experts we strongly oppose the current law proposal, which has already been heavily criticized by experts of Doñana Biological Station, the regional water authority of the Guadalquivir basin, the Spanish Minister of Ecological Transition and Prime Minister, the EU Commission, and UNESCO. In addition, we are extremely worried about the impact of the ongoing drought on rice cultivation in Guadalquivir basin. Rice paddies provide vital stop-over and wintering habitat for large concentrations of European waterbirds, for which they are also flooded in winter under an EU-subsidized agri-environment scheme. The drought caused the surface of cultivated rice paddies to drop by >50% in the past two years, and will be close to zero in 2023. This represents a major threat to numerous European waterbird populations. We therefore take the opportunity to publish an open letter on UN’s World Migratory Bird Day 2023, 13^th May, under the slogan “Water: Sustaining Bird Life”, to raise awareness about this pressing issue and requesting UNESCO to list Doñana as ‘World Heritage in Danger’. Representing the international bird migration research community, we stress the need for an ambitious, cross-sectoral plan to preserve the key natural values of Doñana NP and the Guadalquivir basin, and in particular its international role for migrant birds; one of the main reasons for which Doñana is listed as World Heritage by UNESCO. Wouter V., José A., Jocelyn C., Juan N. &  Theunis P.   Open letter is available in five languages:

• Open letter - Dutch version
• Open letter - English version
• Open letter - French version
• Open letter - German version
• Open letter - Spanish version

  Featured image: current appearance of the Santa Olalla lagoon, the largest permanent lagoon of Doñana ©EBD-CSIC.  

The latest IWSG Small Project Grant has been found! Thomas Lameris' project on Arctic skuas' possible defensive umbrella exploited by Ruddy Turnstones has been awarded with the IWSG Small Project Grant for the field season 2023. Many shorebirds nest in loose groups or colonies to form a ‘defensive umbrella’ around their nest. The same may apply to Ruddy Turnstones that often place their nests close to Arctic Skua nests, which can fiercely defend their nest. However, Turnstones are also know for robbing the nests of other species such as gulls. Thomas and colleagues will study these colonies of Ruddy Turnstones and Arctic Skuas to find out who exactly benefits the most from nesting together. [caption id="attachment_16802" align="aligncenter" width="330"] Thomas Lameris tracking Red Knot chicks in the field using radio telemetry. (c) NIOZ. Royal Netherlands Institute for Sea Research.[/caption] Since 2016, the International Wader Study Group annually funds small projects to support shorebird studies that otherwise will not go ahead. visit the IWSG Small Projects Grants pages: https://www.waderstudygroup.org/projects/small-grants/.   Featured image: Ruddy Turnstone Arenaria interpres in flight, (c) Jeroen Reneerkens.  

on behalf of Andreas Rimoldi & Vojtěch Kubelka Dear fellow shorebird researchers and enthusiasts: We would like to ask you collaboration for gathering data for new research project, where we aim to analyse the camouflage characteristics of adult incubating shorebirds. Background and research rationale Nest predation is a significant cause of avian nest mortality, and in ground-nesting species evading nest detection is an important form of anti-predatory strategy. Egg camouflage has been extensively studied, proving how camouflage predicts survival, when studying shorebirds and nightjars. In the same species, escape distance is possibly related to camouflage on individual scale, of both eggs and adults. Additionally, microhabitat selection and modification on individual level increase the individual camouflage of both nests and adults. We are comparatively investigating adult camouflage in incubating shorebirds, testing the individual camouflage against environmental, life history and geographical variables (e.g. nesting habitat from a broader scale to microhabitat selection, and behavioural variables like mating system and other nest-defense and other anti-predatory behaviour, to provide a detailed insight on how shorebirds rely on and use this anti-predatory strategy. Since it is already known that ground nesting-birds may suffer increase predation rates in changing landscapes, understanding the role of camouflage and how this influences the nest selection sites and survivability will help design future conservation strategies. Request for data We are interested in all shorebird species from all over the world, without the help of the IWSG shorebird community we would not be able to cover the whole diversity of those wonderful animals breeding all over the world! We are looking for RAW pictures of incubating shorebirds, taken in a side view and centered in a representative portion of the nesting environment, with associated data regarding the observed bird. Every camera that can shoot in RAW is suitable for the project. Unfortunately, pictures recorded with nest-cameras, camera traps or digiscoping would not be suitable for this project. If you already have some pictures with associated information, please get in touch with us and we will be happy to consider them if they meet the set-up criteria. The project is not only for shorebird researchers. If you know a photographer or birdwatcher that would be interested and able to help, please inform them about the project. In this project, we will use the dataset gathered up to the end of the year 2023 or start of the year 2024 and we will offer co-authorship in the resulting publication(s) to the collaborators providing suitable photographs used in the analyses. Thank you very much for sharing this opportunity and if interested please get in touch for details. Best wishes, Andreas Rimoldi (Rimoldi.andreas@yahoo.com, waderscamouflage@gmail.com) & Vojtěch Kubelka (kubelkav@gmail.com)

by Deborah Buehler originally published in Wader Study 129(3) Spotlight: A 30-year effort to study an elusive bird The ground gives beneath your feet and you know you have to stop. The wetland surrounding you is also known as a mire, a word that gives fitting connotations of sinking and getting stuck. You look at the bird through binoculars, not daring to go further. It is a small sandpiper with short legs and a long, broad bill with a downturned tip. The English name for this bird is, aptly, Broad-billed Sandpiper. The bird’s Norwegian name is “fjellmyrløper”, which translates to “mountain mire runner”. Now you know why. Instead of flying, it runs through the grass-like sedges ahead of you, almost completely camouflaged. You were lucky to spot it. It probably has a nest out there in that floating vegetation, but you know that going further would not be safe for you or the bird you are trying to study. [caption id="attachment_16698" align="aligncenter" width="330"] Walking through the mire is a challenge. (photo: Stuart Rae)[/caption] Given the difficulty of even seeing these elusive birds, it’s no surprise that Broad-billed Sandpipers Calidris falcinellus are not well-studied. Yet, in this issue of Wader Study there are two papers, by the same team of researchers, on this species. One, by Robert Rae and colleagues describes the breeding ecology of these birds.¹ The other by Brett Sandercock and colleagues focuses on the adult birds’ physical description and annual survival.² Both refer to a long-term study that has been in place for nearly 30 years. When the researchers began the study in 1993 the world was a different place. As they established the study site, Nelson Mandela was elected President of South Africa in the country's first multi-racial elections. When they began to capture, and ring incubating birds eBay was launched. No one “googled” anything and technologies like social media and smart phones were more than a decade away. Yet over all this time, the researchers were walking through the mires, studying Broad-billed Sandpipers. Broad-billed Sandpipers Calidris falcinellus breed in the subarctic taiga biome and can be divided into two distinct populations: a European subspecies breeding in Fennoscandia (Finland, Norway, Sweden and part of Russia), and an Asian subspecies breeding in central and eastern Russia. Globally, the species has a broad geographic range and a large population size, so it is listed as a species of Least Concern by BirdLife International; however, the population in Europe is decreasing and its conservation status is uncertain. The researchers set up their long-term study site in the wetlands near Kautokeino, Finnmark in northern Norway, focusing on the European subspecies. Finnmark is situated at the northernmost part of continental Europe, where the Norwegian coastline swings eastward and "East meets West" in terms of geography, culture, and the natural environment.³ Though national bird surveys take place in this region, there are few records of nesting Broad-billed Sandpipers and no demographic data from breeding populations. Traditional survey methods like counting all birds seen or heard in a standard spot (point counts) or walking in a straight line (line transects) tend to overlook the presence of these camouflaged and secretive birds. ⁴ To remedy this problem, Rae and colleagues began to collect preliminary data in 1993 in order to develop a method to find and study these birds. As expected, nests and incubating birds were difficult to locate. Not only are Broad-billed Sandpipers secretive and solitary, they also “sit tightly,” which means that they are not easily startled (flushed) from their nests when disturbed. Some birds sat tight on their nests even when a person was standing over them. Therefore, each area of mire was searched by walking over it in a meandering route (in contrast to a line transect) to cover all potentially suitable nesting habitat Once a study area was established, the researchers found as many birds and nests as possible, though some nests had to be monitored from a distance of several metres because they could not be reached safely for the observer or the nest contents. Starting in 1995, Rae and colleagues began to capture incubating adults in nests that could be approached, by laying a mist net over the nest when the adult was sitting on eggs or chicks. The researchers did not trap adults on days with rain or high winds that could chill the eggs while the parent was off the nest and did not observe any cases of nest desertion due to catching birds. Once a bird was captured, aspects of the bird’s body size (biometrics) were measured and the bird was marked with a numbered metal ring and a unique combination of colour rings. Colour-ringing allowed the birds to be recognized (re-sighted) when surveys were conducted in later years, creating encounter histories for each individual bird.  Within the encounter history, each year was coded as 1 = captured or re-sighted on the study area, or 0 = not detected during the breeding season. [caption id="attachment_16697" align="aligncenter" width="330"] Well camouflaged and colour ringed Broad-billed Sandpiper. (photo: Stuart Rae)[/caption] The researchers used this study protocol every year from 1995-2019 to survey 10-14 days in the 3-week period between 15 June and 8 July. From 2000-2019, they further mapped local conditions around the nest sites (in later years using GPS coordinates) so that the same areas could be checked in subsequent years to locate pairs reusing the same location. From 2009-2019, they conducted intensive monitoring with experienced observers returning to all sites two or more times during the incubation period to estimate nest survival. All those years of fieldwork paid off. Rae and colleagues found a total of 173 Broad-billed Sandpiper nests from 2000-2019, with an average of 8 per year, but varying between 2-16. Nests were typically set in a shallow depression (scrape) on a tussock (tuft) of vegetation or mossy hummock and lined with dry dead sedge. All of the nests were located in or on the edge of floating vegetation within the mires and only 5-10 cm above the water level. No other bird species was found nesting in this way or in these habitats. The birds were also very faithful to their nest site. Of the breeding birds that returned in subsequent years, 97% nested in the same mire and many pairs reused the same nest scrape. [caption id="attachment_16696" align="aligncenter" width="330"] Broad-billed Sandpiper nest. (photo: Stuart Rae)[/caption] The average date for egg laying in years 2009-2019 was 10 June and varied between 1-24 June. Rae and colleagues were able to check the contents of 156 nests and found that 94% of these had four eggs, which is typical in shorebirds. They were further able to monitor the fate of 91 nests and recorded six losses due to flooding, one to predation and one from an unknown cause. Like most shorebird species, the males mainly took care of hatched young. The strategy of nesting on floating vegetation resulted in high nest success and low predation rates but left the nests vulnerable to flooding. Nest placement has conservation implications, especially if rainstorms fueled by climate change cause water levels to rise rapidly, threatening breeding success. Rae and colleagues ringed and re-sighted 119 Broad-billed Sandpipers during the breeding seasons of 1995-2019. They found annual survival rates that were typical for small-bodied waders. Estimated survival rates did not differ between the sexes, but were lower among first-year than older birds, and highest among previously marked birds that had returned to the study site at least once. Biometric measurements of body size showed that, like in most species of shorebirds, females are larger than males, and that in Broad-billed Sandpipers the difference in size is greatest for bill length. Bill length affects feeding behaviour (pecking and probing for food) and in other shorebird species, this sometimes leads to males and females using different habitats and sometimes even different latitudes in the non-breeding season. Testing whether this might also be true for Broad-billed Sandpipers will require studies of feeding ecology on the non-breeding grounds. Finally, the researchers captured three birds that had been caught and ringed elsewhere during migration (foreign recaptures). They were able to compare biometric measurements from these birds with similar data from birds breeding in the study site. These data suggested that birds breeding in Norway are part of the same population as birds stopping in the Sivash in eastern Europe during spring migration.⁵ The stopover area in the Sivash is located in the contested Crimean Peninsula. When this study began, Crimea was part of Ukraine and early fieldwork in both Norway and Sivash were underway. Two decades later in 2014, while the work in the breeding areas continued, Russia annexed the Crimea. This past year (2022), the Sivash is again in the middle of a war zone and one wonders about the fate of the birds, and of colleagues on both sides of the conflict. The Sivash is not the only part of the Broad-billed Sandpiper flyway under threat. The researchers point out that poorly-studied nonbreeding habitats are also vulnerable to expanding human development. Future work will focus on tracking birds with geolocators, tiny tags that record ambient light level (solar irradiance) to determine the bird’s location. The tracking tags will allow researchers to gather better data on which habitats are critical in the nonbreeding range and might even allow data collection to continue when a site becomes inaccessible for on-the-ground study. Thirty years is a long time. The internet rose, the Twin Towers in New York fell, wars began and ceased, and through it all these researchers walked carefully through the mires of northern Norway studying small sandpipers with short legs and strange bills. Their persistence and long-standing international cooperation provide more than just data about a poorly-studied bird species. In an increasingly fast-paced and divided world, this type of collaboration provides hope.   ¹ Rae, R, S Rae, B. K. Sandercock & D. P. Whitfield. 2022. The breeding ecology of Broad-billed Sandpipers in northern Norway. Wader Study 129: 183–189. ² Sandercock, B. K., R. Rae, S Rae, & D. P. Whitfield. 2022. Sexual size dimorphism, disassortative pairing, and annual survival of Broad-billed Sandpipers in northern Norway. Wader Study 129: 194–206. ³ Finmmark. (2022, December 19). In Wikipedia. https://en.wikipedia.org/wiki/Finnmark#:~:text=Situated%20at%20the%20northernmost%20part,of%20Saint%20Petersburg%20and%20Istanbul. ⁴ Hildén, O. 1981. Sources of error involved in the Finnish line-transect method. Studies in Avian Biology 6: 152-159.  ⁵ Verkuil, Y., T.M. Van der Have, J. Van der Winden, G.O. Keijl, P.S. Ruiters, A. Koolhaas, A. Dekinga & Chernichko, II. 2006. Fast fuelling but light flight in Broad-billed Sandpipers Limicola falcinellus: stopover ecology at a final take-off site in spring (Sivash, Ukraine). Ibis 148: 211-220.   PDF of this article

The 2023 annual conference will be held at the Wadden Sea island of Sylt, Germany. For more information, please consult the conference webpage: [embed]https://www.waderstudygroup.org/conferences/2023-sylt-germany/[/embed]