The BirdTrends 2022 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. For each of 121 species, users can quickly access the latest information on trends in population size, breeding performance and survival rates, as measured by our long-term monitoring schemes. For each species, you will find: The latest conservation listings and estimates of UK population size A summary of changes in the size of the population and the possible causes of these changes Graphs and tables showing changes in UK population size, breeding performance and survival since our monitoring began Wherever possible, graphs and tables separately for UK countries (England, Scotland, Wales and Northern Ireland) Alerts, drawing attention to population declines of greater than 25%, or greater than 50%, that have occurred over the the most recent five-, ten- and 25-year assessment periods and the maximum period available (usually 50 years). Text, tables, graphs and presentation for each species are updated annually to include the latest results alongside interpretative material from the literature. Information on demographic trends and on the causes of change is gradually being expanded. Read the full report

This study identifies what could be a previously undetected biodiversity decline that potentially represents a significant conservation and economic issue in the UK.

BTO research explores how best to integrate bird biodiversity within planned urban developments.

Celebrates the anniversaries of the CES and RAS schemes. It includes the results from the 2021 breeding season and contains articles on monitoring Knot, Meadow Pipits, seabirds, Blackcaps, Barnacle Geese and Woodcock.

This report presents the main findings from survey work delivered using passive acoustic monitoring devices deployed across the Bailiwick of Guernsey. Through the surveys that we support we aim to improve knowledge and understanding of species distribution and activity, covering a range of taxonomic groups, including bats, small terrestrial mammals and insects. Through this approach we provide robust datasets that can be used to inform better decision-making processes.