Help monitor the UK’s threatened gull species by taking part in the Winter Gull Survey.
The Winter Gull Survey collects information about our wintering gull populations, through the coordinated effort of volunteer surveyors across the UK. It will run over the winters of 2023/24 and...
Wave of avian influenza hitting Black-headed Gulls
Fears grow around the new wave of Avian Flu as the disease kills thousands of inland gulls.
What drives stability in ecological communities?
Using data collected by volunteers participating in three national butterfly monitoring schemes - operating in Spain, the UK and Finland - this paper explores the mechanisms shaping community...
Read the BTO's latest BirdTrends report
The BirdTrends 2022 report is a one-stop shop for authoritative information about the population status of the common breeding birds in the UK.
Research reveals why Willow Warblers breeding in different parts of Britain are affected by climate change in different ways.
Pied Flycatcher population trends are driven by factors acting during migration and in non-breeding areas, an area which needs to be prioritised for future research.
Tracking data allows researchers to monitor Curlew without disturbance during the breeding season
The Curlew is of significant conservation concern in the UK, but many questions still remain about their breeding behaviour. This is partially due to the species’ cryptic nature and sensitivity to...
Little evidence to indicate consistent, community-level effects of Badger removal on the populations of ground-nesting birds
Goose and Swan Monitoring Programme
This project tracks the abundance and breeding success of the UK’s native geese and migratory swans through winter surveys.
Providing the evidence for policy
BTO Cymru’s Rachel Taylor and Callum Macgregor reflect on working at the interface between science and policy for their research on Cormorant and Goosander populations in Wales.
Avoiding tunnel vision during a PhD
Sophie Bennett reflects on her recent three month placement at the BTO and the value of taking a step back from a PhD.
Using bird ringing data to help target conservation management
Amidst widespread declines, how can we ensure conservation is targeted and effective? Analysis of ringing data may be key to answering this question.
Ringing data for conservation
Amidst widespread declines, how can we ensure conservation is targeted and effective? Analysis of ringing data to detect patterns of survival and productivity may be key to answering this question.
Resilient protected area network enables species adaptation that mitigates the impact of a crash in food supply
Oystercatcher numbers are declining in the UK, in line with the trends for wader species globally, and with ever greater anthropogenic changes to wader habitats, it is vital we understand the...
Birds of Conservation Concern
Commonly referred to as the UK Red List for birds, the status of birds has now been reviewed five times, covering the UK, Channel Islands and Isle of Man....
Assessing drivers of winter abundance change in Eurasian Curlews Numenius arquata in England and Wales
Climate Change Appeal
Globally, up to 7% of birds are considered to be at risk of extinction due to climate change. Please donate today and you can support BTO’s work to collect and analyse data that highlights the real...
The Shetland Bird Survey: Population trends
Population trends are estimated for the first time for twelve species based on Shetland Breeding Bird Survey data collected between 2002 and 2019.
Long-term and large-scale multispecies dataset tracking population changes of common European breeding birds
Climate and land use changes: similarity in range and abundance changes of birds in Finland and Great Britain
BirdTrends 2020: Trends in numbers, breeding success and survival for UK breeding birds
The BTO's BirdTrends report is a one-stop shop for information about the population status of the common breeding birds of the wider UK countryside.
What's next for our waders?
Recent BTO work focuses on understanding the variation in Curlew and other UK wader populations so that we can help suggest actions to conserve them.