BirdTrends 2023
Read BTO’s BirdTrends 2023 Report
BTO’s BirdTrends 2023 report provides summary information about the population status of the common breeding birds of the wider UK countryside.
More DetailsLatest Publications
The Breeding Bird Survey of the United Kingdom
BBS data have been widely used in research over the past three decades, and they have always been available upon request.
Factors influencing nest site selection in a rapidly declining shorebird, the Eurasian curlew
This paper reports on work done studying Curlew in the New Forest, in collaboration with the University of Bournemouth, and in association with the Game and Wildlife Conservation Trust.
Seabird Population Trends and Causes of Change: 1986–2023, the annual report of the Seabird Monitoring Programme
SMP Annual Report 1986–2023
The latest seabird population trends in breeding abundance and productivity using data from the Seabird Monitoring Programme (SMP).
Temperature sensitivity of breeding phenology and reproductive output of the Common Redstart (Phoenicurus phoenicurus)
Although in general there is not a strong signal that climate change is causing a sufficient mismatch between avian predators and their insect prey, such as caterpillars, flies and other insects, t
How to make land use policy decisions: Integrating science and economics to deliver connected climate, biodiversity, and food objectives
Decline in the numbers of Eurasian Oystercatchers Haematopus ostralegus on the Exe estuary Special Protection Area
The study found that kleptoparasitism by Carrion Crows and Herring Gulls could help to explain the trends observed on the Exe Estuary.
LifeCycle issue 13, Autumn 2024
Issue 13 contains articles on monitoring Kestrels, highlights a Stonechat monitoring project in the New Forest and a Goosander-tagging project in Scotland, and sheds light on some unusual Rock Pipi
Improving acoustic species identification using data augmentation within a deep learning framework
Watching Out for Waders: The Working for Waders Nest Camera Project
Low rates of nest and chick survival, caused mainly by predation, have driven large declines in breeding wader populations across Scotland.
Protected areas, drought, and grazing regimes influence fire occurrence in a fire-prone Mediterranean region
This study builds on previous work as part of the ‘Polesia: wilderness without borders’ project, which
Estimating the distribution of reed Phragmites australis in Britain demonstrates challenges of remotely sensing rare habitat types at large spatial scales
Although the reed plant is an invasive species in much of the world, in Britain reedbed is a relatively scarce habitat, but one that is important for a several bird species.
Trial of the use of silicone cord leg-loop harnesses on Black-legged Kittiwake during the 2023 breeding season
Testing harness designs for tracking seabirds
Waterbirdnews Issue 40 (Autumn 2024)
The newsletter of the Wetland Bird Survey and the Goose & Swan Monitoring Programme.
Browse all issues of Waterbirdnews >
Influence of wind on kittiwake Rissa tridactyla flight and offshore wind turbine collision risk
Many new offshore wind farms are planned, but much uncertainty remains in Kittiwake collision risk, which makes decision-making around offshore wind farm development less efficient.
The status of the UK’s breeding seabirds: an addendum to the fifth Birds of Conservation Concern in the United Kingdom, Channel Islands and Isle of Man and second IUCN Red List assessment of extinction risk for Great Britain
The conservation status of breeding seabirds is updated in this paper, with an additional five (Leach’s Storm-petrel, Common Gull, Great Black-backed Gull, Arctic Tern and Great Skua) joining the B
New insights into the migration and wintering areas of Scottish-breeding Arctic Skuas
Arctic Skuas breed in dwindling numbers on Scotland’s northern coasts and islands.
Differential changes in the morphology and fuel loads of obligatory and partial migrant passerines over half a century in Britain
Climate change can also lead to changes in distribution, at either the northern or southern end of their migratory route.
Diversity in Irish and British avifauna assemblages: What can variation in diversity profiles reveal about the forces that drive assemblage composition and structure?
Treating gaps and biases in biodiversity data as a missing data problem
However, such data do need to be treated carefully if they are to yield reliable evidence. One problem that frequently occurs is that of gaps in coverage caused by, for example, missing visits.
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