Understanding statistical power in passive acoustic monitoring of bats: evaluating survey and sampling protocols in the Bailiwick of Guernsey

This BTO Research Report explores the ability of data collected through the Bailiwick Bat Survey to produce robust long-term monitoring trends for a suite of species.

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Bird monitoring at a local scale: A guide for local project coordinators and volunteer birdwatchers

BTO has a long history of supporting long-running national monitoring schemes such as the Breeding Bird Survey, Wetland Bird Survey, Seabird Monitoring Programme and Nest Record Scheme. As well as ...

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Solar radiation affects bird distributions but not elevational shifts in European mountains

Research involving BTO shows bird species moving toward colder areas in the mountains of Europe as the climate has warmed over the past two decades.

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91st Annual Report & Accounts 2024/25

Thanks to our members, funders and supporters, £7.3 million was spent during the year carrying out, supporting and communicating our ornithological research and delivering engagement.Through our Bird ...

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Genomic architecture of egg mimicry and its consequences for speciation in parasitic cuckoos

Cuckoos are brood parasites, meaning they lay their eggs in other species' nests, and the resulting chicks are raised by the host species. Cuckoos therefore face strong evolutionary pressure for their ...

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Waterbird News - Issue 41

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Evaluating aerial LiDAR and other approaches to avian flight height measurement – ReSCUE Project Validation Study Report

This report investigates the accuracy and reliability of seabird flight height data that are used to mitigate impacts of offshore wind farms on seabird populations. Through a set of trials, we set out ...

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