BTO publishes various reports, from those covering the annual results of core surveys, through scientific studies, and on to those produced in partnership with other organisations. Many of these are published as BTO Research Reports. You can access all of our reports from here, though note that we are currently updating the reports section, working backwards through time to bring all of the report pages into a consistent format. You can read our Annual Report and Accounts in the Governance section.
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The State of the UK's Birds 2020

The State of UK’s Birds reports have provided an periodic overview of the status of the UK’s breeding and non-breeding bird species in the UK and its Overseas Territories since 1999. This year’s report highlights the continuing poor fortunes of the UK’s woodland birds, and the huge efforts of BTO volunteers who collect data.
17.12.20
Reports
Annual Report & Accounts 2019/20

The end of this financial year has, of course, coincided with the global pandemic which has changed all of our lives.
14.09.20
Reports
Audit of local studies of breeding Curlew and other waders in Britain and Ireland
09.06.20
Reports
Waterbirds in the UK 2018/19

Waterbirds in the UK presents the results of the annual Wetland Bird Survey Report. It provides a single, comprehensive source of information on the current status and distribution of waterbirds in the UK for those interested in the conservation of the populations of these species and the wetland sites they use.
16.05.20
Reports
The Breeding Bird Survey 2019

This is the twenty-fifth annual report of the BTO/JNCC/RSPB Breeding Bird Survey (BBS), documenting the population trends of widespread UK breeding bird species during the period 1994–2019.
07.05.20
Reports
Fine-scale mapping of relative abundance and trends, and extraction of small-area population trends for breeding birds
29.04.20
Reports
Pilot Tracking Study of the Migratory Movements of Shelduck to Inform Understanding of Potential Interactions with Offshore Wind Farms in the North Sea
23.04.20
Reports
Northern Ireland Seabird Report 2019

There were mixed fortunes for Northern Ireland’s seabirds in 2019, but monitoring that year also confirmed the importance of the country’s coastline for its 22 breeding seabird species.
18.03.20
Reports
BirdTrends 2019

The BirdTrends 2019 report is a one-stop shop for authoritative information about the population status of the common breeding birds of the wider UK countryside. The report is based on data gathered by the many thousands of volunteers who contribute to BTO-led surveys.
01.01.20
Reports