Cyhoeddiadau y BTO
Recent BTO Wales publications
BirdTrends 2022: Trends in numbers, breeding success and survival for UK breeding birds
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.
Birds of Conservation Concern Wales 4: the population status of birds in Wales
What does the latest Birds of Conservation Concern review mean for Welsh birds?
Assessing drivers of winter abundance change in Eurasian Curlews Numenius arquata in England and Wales
Rapid adaptive modelling for policy support towards achieving Sustainable Development Goals: Brexit and the livestock sector in Wales
Wader populations on the UK’s open coast: results of the 2015/16 Non-Estuarine Waterbird Survey (NEWS-III) and a review of population trends
Wader population trends on the UK's open coast
Newly published research from BTO underlines the importance of the UK’s rocky shores and sandy beaches for waterbird species.
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.
Contrasting long‐term trends in age‐specific survival of Peregrine Falcons (Falco peregrinus) in Britain using smoothed estimates of recovery probabilities
Living fast: using ringing data to look at survival of British Peregrines
The State of the UK's Birds 2020
Providing an annual overview of the status of the UK’s breeding and non-breeding bird species in the UK, this year’s report highlights the continuing poor fortunes of the UK’s woodland birds, and the huge efforts of BTO volunteers collecting data.
Audit of local studies of breeding Curlew and other waders in Britain and Ireland
The Eurasian Curlew is widely considered to be one of the highest bird conservation priorities in the UK and Ireland. A number of other breeding waders have also showed marked declines during a similar time frame, and a multitude of field initiatives across Britain and Ireland have been established, or tailored, to support conservation of these wader species. This audit aimed to collate information from as many of these breeding wader projects as possible, to allow BTO to assess how best it might assist local to national initiatives through partnership working in future.
Associations between gamebird releases and general predators
Pheasants and Red-legged Partridges for commercial shoots may be boosting numbers of the avian predators and scavengers.
State of Birds in Wales 2018
The State of Birds in Wales 2018 was published on 6 December 2018.
When is enough enough? Effective sampling protocols for estimating the survival rates of seabirds with mark-recapture techniques
The breeding population of Peregrine Falcon Falco peregrinus in the United Kingdom, Isle of Man and Channel Islands in 2014
Breeding Peregrines on the up thanks to growth of lowland populations
The return of breeding Peregrines to former haunts, and the colonisation of urban sites such as industrial buildings and cathedrals, has not gone unnoticed by birdwatchers. It is only now, however, with the publication of the results from the latest national Peregrine survey, that we can put figures on the changing fortunes of this stunning bird of prey.
The importance of the United Kingdom for wintering gulls: population estimates and conservation requirements
An examination of reptile and amphibian populations in gardens, the factors influencing garden use and the role of a 'Citizen Science' approach for monitoring their populations within this habitat
Indexing winter gull numbers in Great Britain using data from the 1953 to 2004 Winter Gull Roost Surveys
Population decline of Leach's Storm-petrel Oceanodroma leucorhoa within the largest colony in Britain and Ireland
Changes in breeding wader populations on lowland wet grasslands in England and Wales: causes and potential solutions
Understanding Curlew populations in Wales
Several tracking projects combine to determine the migration routes, wintering locations and breeding season movements of Welsh Curlew.
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.
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