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Waterbirds in the UK
Cover of Waterbirds in the UK report 2021-2022

Waterbirds in the UK 2021/22: The Wetland Bird Survey and Goose & Swan Monitoring Programme

2023 | Austin, G.E., Calbrade, N.A., Birtles, G.A., Peck, K., Wotton, S.R., Shaw, J.M., Balmer, D.E. & Frost, T.M.

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Latest Publications

Peer-reviewed papers
Protected area, by Katherine Booth Jones / BTO

The benefits of protected areas for bird population trends may depend on their condition

2024 | Brighton, C.H., Massimino, D., Boersch-Supan, P., Barnes, A.E., Martay, B., Bowler, D.E., Hoskins, H.M.J. & Pearce-Higgins, J.W. Biological Conservation

With an estimated 1 million species currently threatened with extinction, it is imperative to stem biodiversity loss.

Peer-reviewed papers
Arctic Skua, by Sarah Harris / BTO

Synchronous timing of return to breeding sites in a long-distance migratory seabird with ocean-scale variation in migration schedules

2024 | van Bemmelen, R., Moe, B., Schekkerman, H., Hanssen, S.A., Snell, K., Humphreys, L., Mäntylä, E., Hallgrimsson, G.T., Gilg, O., Ehrich, D., Calladine, J., Hammer, S., Harris, S., Lang, J., Vignisson, S., Kolbeinsson, Y., Kimmo, N., Sillanpää, M., Sittler, B., Sokolov, A., Klaassen, R., Phillips, R. & Tulp, I. Movement Ecology

Peer-reviewed papers
Cuckoo, by Colin Brown / BTO

Fidelity and distance to previously visited sites throughout the annual cycle in a trans-Saharan migrant, the Common Cuckoo

2024 | Bonaldi, C., Vardanis, Y., Willemoes, M., Hewson, C.M., Atkinson, P.W., Nilsson, J-Å., Klaassen, R.H.G., Strandberg, R., Tøttrup, A.P., Howey, P.W., Alerstam, T. & Thorup, K. Journal of Avian Biology

Research in collaboration with BTO scientists has used data from satellite-tracked adult male Cuckoos to show that although all birds returned to the same breeding grounds in consecutive years, the

Research Reports
Red Kite, by John Harding / BTO

Modelling population-level impacts of wind farm collision risk on Welsh Red Kites

Red Kites and onshore wind in Wales

2024 | Hereward, H.F.R., Macgregor, C.J., Gabb, O., Connell, A., Thomas, R.J., Cross, A.V. & Taylor, R.C.

The Welsh Red Kite population is currently in ongoing recovery after a historic decline driven by persecution, and a consequent population bottleneck during the first half of the 20th century.

Peer-reviewed papers
Arctic Skua with ring and geolocator on leg, by Sarah Harris / BTO

Cross population comparison of complex migration strategies in a declining oceanic seabird

2024 | O'Hanlon, N.J., van Bemmelen, R.S.A., Snell, K.R.S., Conway, G.J, Thaxter, C.B., Aiton, H., Aiton, D., Balmer, D.E., Are Hanssen, S., Calladine, J.R., Hammer, S., Harris, S.J., Moe, B., Schekkerman, H., Tulp, I. & Humphreys, E.M. Marine Ecology Progress Series

Arctic Skuas are long-distance migrant seabirds that have seen large declines in breeding numbers across areas of the nor

Research Reports
Yellowhammer, by Liz Cutting / BTO

Breeding periods of hedgerow-nesting birds in England

Breeding periods of hedgerow-nesting birds in England

2024 | Hugh J. Hanmer & Dave I. Leech

Peer-reviewed papers
Grass Snake, by Amy Lewis / BTO

Characterisation, prevalence and severity of skin lesions caused by ophidiomycosis in a population of wild snakes

2024 | Allain, S.J.R., Leech, D.I., Hopkins, K., Seilern-Moy, K., Rodriguez-Ramos Fernandez, J., Griffiths, R.A. & Lawson, B. Scientific Reports

Research Reports
BTO research Report 764 cover

Bailiwick Bat Survey: 2023 season report

Bailiwick bat survey report findings

2024 | Newson, S.E., Allez, S.L., Coule, E.K., Guille, A.W., Henney, J.M., Higgins, L., Mclellan, G.D., Lewis, M., Simmons, M.C. & Atkinson, P.W.

The Bailiwick Bat Survey capitalises on the interest and enthusiasm of volunteers to participate in biodiversity monitoring to systematically collect bat distribution and activity data across Guern

Peer-reviewed papers
Kittiwake, by Sam Langlois / BTO

Challenges in quantifying the responses of Black-legged Kittiwake to habitat variables and local stressors due to individual variation

2024 | O’Hanlon, N.J., Thaxter, C.B., Clewley, G.D., Davies, J.G., Humphreys, E.M., Miller, P.I. Pollock, C.J., Shamoun-Baranes, J., Weston, E. & Cook, A.S.C.P. Bird Study

During the 2021 breeding season, BTO scientists tracked 20 Kittiwakes, fitted with small GPS devices, from Whinnyfold – par

Peer-reviewed papers
Coastal habitat, by Tom Cadwallender / BTO

Species- or habitat- based assessments of vulnerability to climate change? Informing climate change adaptation in special protection areas for birds in England

2024 | Duffield, S.J., Morecroft, M.D., Pearce-Higgins, J.W. & Taylor, S.D. Biological Conservation

In this paper, two approaches commonly adopted by Natural England for climate change vulnerability assessments were used to assess the vulnerability to climate change of Special Protection Areas (S

Peer-reviewed papers
Sedge Warbler, by Edmund Fellowes / BTO

Understanding population change: the value of the EuroCES constant-effort ringing programme

Insights on bird populations from across Europe

2024 | Robinson, R.A. Ringing & Migration

Peer-reviewed papers
Kestrel, by Philip Croft / BTO

Anthropogenic climate and land-use change drive short-and long-term biodiversity shifts across taxa

2024 | Montràs-Janer, T., Suggitt, A.J., Fox, R., Jönsson, M., Martay, B., Roy, D.B., Walker, K.J. & Auffret, A.G. Nature Ecology & Evolution

This collaborative research involving BTO attempted to start understanding how habitat change and climate change interact.

Peer-reviewed papers
Lesser Black-backed Gull, by Edmund Fellowes / BTO

Leakage of plastics and other debris from landfills to a highly protected lake by wintering gulls

2024 | Martín Vélez, V., Cano-Povedano, J., Cañuelo-Jurado, B., López-Calderón, C., Céspedes, V., Ros, M., Sánchez, M.I., Shamoun-Baranes, J., Müller, W., Thaxter, C.B., Camphuysen, C.J., Cózar & Green, A.J. Waste Management

The study, led by the Institut de Ciències del Mar and Estación Biológica de Doñana, CSIC, Spain, used diet samples collected in January 2022 at the Fuente de Piedra – an inland lake in Spain that

Peer-reviewed papers
Red Admiral in garden, by Edmund Fellowes / BTO

Using butterfly survey data to model habitat associations in urban developments

2024 | Cooper, J.E.J., Plummer, K.E., Middlebrook, I. & Siriwardena, G.M. Journal of Applied Ecology

This study used data from 160 urban sites in England, collected by volunteers taking part in the Wider Countryside Butterfly Survey, in which BTO is a partner.

Peer-reviewed papers
Coal Tit, by Liz Cutting / BTO

Avian responses to climate extremes: insights into abundance curves and species sensitivity using the UK Breeding Bird Survey

2024 | Tirozzi, P., Massimino, D. & Bani, L. Oecologia

Climate change is one of the major threats to species conservation. Biological responses to climate change include shifts in species distribution, behavioural and physiological changes.

Peer-reviewed papers
Sandwich Tern, by Philip Croft / BTO

Behavioural responses of Sandwich terns following the construction of offshore wind farms

2024 | Thaxter, C.B., Green, R.M.W., Collier, M.P., Taylor, R.C., Middelveld, R.P., Scragg, E.S., Wright, L.J., Cook, A.S.C.P. & Fijn, R.C. Marine Biology

Between 2016 and 2019, BTO scientists fitted Sandwich Terns breeding at Scolt Head Island in Norfolk with long-life GPS tags which tracked the birds’ movements over multiple years.

Peer-reviewed papers
Robin, by Edmund Fellowes

Extended moult phenology models improve inferences about moult duration and timing

Removing barriers to studying moult in birds

2024 | Boersch-Supan, P.H., Hanmer, H.J. & Robinson, R.A. Ornithology

Peer-reviewed papers
Short-eared Owl in flight, by Liz Cutting / BTO

Remote tracking unveils intercontinental movements of nomadic Short-eared Owls Asio flammeus with implications for resource tracking by irruptive specialist predators

Astounding Short-eared Owl movements revealed

2024 | Calladine, J., Hallgrimsson, G.T., Morrison, N., Southall, C., Gunnarsson, H., Jubete, F., Sergio, F. & Mougeot, F. Ibis

International research led by BTO has revealed that Short-eared Owls make astonishing nomadic migrations between nest sites as far apart as Scotland and Arctic Russia. 

Peer-reviewed papers
Arable landscape by Mike Toms / BTO

Distance functions of carabids in crop fields depend on functional traits, crop type and adjacent habitat: a synthesis

2024 | Boetzl, F.A., Sponsler, D., Albrecht, M., Batáry, P., Birkhofer, K., Knapp, M., Krauss, J., Maas, B., Martin, E.A., Sirami, C., Sutter, L., Bertrand, C., Bosem Baillod, A., Bota, G., Bretagnolle, V., Brotons, L., Frank, T., Fusser, M., Giralt, D., González, E., Hof, A.R., Luka, H., Marrec, R., Nash, M.A., Ng, K., Plantegenest, M., Poulin, B., Siriwardena, G.M., Tscharntke, T., Tschumi, M., Vialatte, A., Van Vooren, L., Zubair-Anjum, M., Entling, M.H., Steffan-Dewenter, I. & Schirmel, J. Proceedings of the Royal Society B: Biological Sciences

Peer-reviewed papers
Bar-tailed Godwit, by Graham Catley / BTO

Contrasting habitat use between and within Bar-tailed Godwit and Curlew wintering on the Wash, England

Adjacent habitats vital for intertidal waders

2024 | Pell, R.J., Clark, J.A. & Robinson, R.A. Wader Study

A new study has revealed contrasting habitat use between and within Bar-tailed Godwits and Curlews wintering on the Wash.


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