Written and illustrated by experts, this guide contains a wealth of information for 145 British and Irish species, together with introductory sections on nest-monitoring techniques, nest ...

This 2-hour online session will use worked examples and live exercises to highlight and practice applying the key considerations for determining the territories of breeding birds from observations ...

Agri-environment schemes play a central role in delivering environmental policies in England. It is important to understand how these schemes are delivering for birds and other target species, ...

This report provides an assessment of the 2025 breeding season in terms of population sizes and breeding success, comparing this year’s results to the averages recorded over the previous five seasons.

Schedule 1 licence holders have cooperated over many years to minimise disturbance to nesting birds. Unfortunately, there are very few breeding hen harriers in England, and the number of Schedule 1 ...

Britain is internationally important for wintering waterbirds due to its temperate maritime climate, extensive network of productive estuarine and inland wetland habitats, and geographical location ...

To celebrate the first season of Cudyll Cymru and the valuable data it is generating, we are hosting our inaugural Welsh Raptor Convention on 31st January 2026 at Aberystwyth University. We hope the ...

This report presents the results of work using static acoustic recorders, deployed between May and mid-August 2024, to provide extensive acoustic data for the Stour Valley Farmer Cluster. Static ...

The British Trust for Ornithology has existed since 1933 as an independent, scientific research trust, investigating the populations, movements and ecology of wild birds in the British Isles. Our ...

For migrant birds, there are both ‘push’ and ‘pull’ factors that drive their migration. Typically, it’s a mix of factors. Different species also migrate at different times, and in different ways - in ...

UK springs are starting earlier as the climate warms, with bud burst and the emergence of invertebrates such as caterpillars that eat this young vegetation happening earlier too. These invertebrates ...