Calls and identification The territorial hooting call of a male Tawny Owl is probably the most familiar of UK owl calls, beginning with a drawn out ‘hooo’, followed by a brief pause, before a softer ...

The Blackbirds in Gardens project will help us understand how Blackbirds use gardens, and the potential effects of the Usutu virus on their population in the UK. Update: The 2025 spring survey season ...

Hayhow D.B., Ausden M.A., Bradbury R.B., Burnell D., Copeland A.I., Crick H.Q.P., Eaton M.A., Frost T., Grice P.V., Hall C., Harris S.J., Morecroft M.D., Noble D.G ...

Join BTO Scotland for a practice session on wader and waterbird ID, learning key features and transferable skills. Find out more about the Wetland Bird Survey and how you can take part.

Papers Raptors: a field guide for surveys and monitoring [3rd Edition] On this page ...

Detection of West Nile virus via retrospective mosquito arbovirus surveillance, United Kingdom, 2025 ...

BTO South-West Conference Saturday 8th November 2025, 09:00 - 16:00. Featuring talks on locally important species by a combination of local and BTO speakers. Plenty of breaks for catching up with ...

Join BTO Scotland for a practice session on wader and waterbird ID, learning key features and transferable skills. Find out more about the Wetland Bird Survey and how you can take part.

To evaluate (1) whether three migratory nightjar species (Family Caprimulgidae) adhere to Bergmann’s rule, (2) whether environmental factors on the breeding or wintering grounds determine body size, ...

Search looks for exact, case-insensitive keywords of at least 3 characters. Use upper-case OR to get more results. Example: cat OR dog (content contains either "cat" or "dog"). You can use upper-case ...

Search looks for exact, case-insensitive keywords of at least 3 characters. Use upper-case OR to get more results. Example: cat OR dog (content contains either "cat" or "dog"). You can use upper-case ...

This study assessed the use of glue-mounted GPS tags to track Goosanders in two Scottish river catchments with contrasting management regimes – the Tweed, where licensed shooting occurs, and the Forth ...