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.
Search settings
Northern Ireland Seabird Report 2017
Since 1986, seabird populations in the UK and Ireland have been monitored through the Seabird Monitoring Programme coordinated on behalf of partnership organisations by JNCC. Sample data on breeding abundance and breeding success of seabirds are collected from a large network of sites, both regionally and nationally, to enable species’ conservation status to be assessed. To examine trends at individual colonies, at country level and across the whole UK, it is essential that individual sites can be monitored consistently for many years.
01.03.18
Reports
Assessing habitat use of Herring Gulls in the Morecambe Bay SPA using GPS tracking devices
Number of coastal Herring Gull populations have reduced markedly in recent years. The breeding gull colony of the South Walney and Piel Channel Flats Site of Special Scientific Interest (SSSI), within the Morecambe Bay and Duddon Estuary potential Special Protection Area (pSPA), is of national and intermational importance for its number of Herring Gull Larus argentatus and Lesser Black-backed Gull Larus fuscus.
05.02.18
Reports
Assessing the habitat use of Lesser Black-backed Gulls (Larus fuscus) from the Bowland Fells SPA - ANNEX 1 - 2017 update
This annex to BTO Research Report 694 (Clewley et al. 2016) presents a summary update for 2017 on the results of a GPS tracking study of Lesser Black-backed Gulls Larus fuscus breeding in the Bowland Fells Special Protection Area (SPA).
05.02.18
Reports
Improving understanding of the possible relationship between improving freshwater and coastal water quality and bird interest on designated sites - phase 1 review
Over the past 50 years there has been widespread improvement in water quality in many freshwater and coastal systems driven by domestic and European legislation, most recently the EU Water Framework Directive (EC Directive 2000/60/EC), but also including the Urban Waste Water Treatment Directive (EC Directive 91/271/EEC) and Bathing Water Directive (EC Directive 76/160/EEC).
05.02.18
Reports
BirdTrends 2017
The BirdTrends 2017 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.
01.01.18
Reports
Monitoring Breeding Waders in Wensleydale: trialling surveys carried out by farmers and gamekeepers
21.11.17
Reports
Results of the third Non-Estuarine Waterbird Survey, including Population Estimates for Key Waterbird Species
During December, January and February of the winter of 2015/16 the BTO organised the third Non-estuarine Waterbird Survey (NEWS III), the fourth in a series of coordinated winter surveys of the non-estuarine coast of the UK, following the Winter Shorebird Count (WSC) in 1984/85 (Moser 1987), NEWS I in 1997/98 (Rehfisch et al. 2003) and NEWS II in 2006/07 (Austin et al. 2008).
01.10.17
Reports