Read the latest updates from our Cuckoos on their epic migration between the UK and tropical Africa, or track their movements in real-time on our Cuckoo migration map. If you enjoy these updates, ...

With unprecedented pressures on funding, we need your help now more than ever to continue our essential surveys. The Winter Gull Survey collects information about our wintering gull populations, ...

Use these resources to learn how to identify owls; find out more about their ecology, fascinating behaviour and how to build next boxes for them. Although not native to Britain, the Little Owl can now ...

This report presents the main findings from survey work delivered using passive acoustic monitoring devices deployed across the Skell Valley catchment. Through the surveys that we support we aim to ...

Seabirds are particularly vulnerable to the effects of climate change, with previous research by BTO projecting significant declines over the coming decades. Seabird populations respond to climate ...

Being largely nocturnal in their habits, owls face a different set of challenges to many other predatory birds. In addition to their excellent vision, hunting owls also rely on their sense of hearing ...

The Little Owl is a species of open country, favouring lowland habitats such as farmland, parkland and orchards. Introduced from the Continent during the latter part of the 19th century, the species ...

Our reports provide rigorous scientific information to inform Environmental Impact Assessments in the UK. It may still feel like winter but for some species, the increasing temperatures and ...

When it comes to taxonomy, BTO follows the British Ornithologists’ Union (BOU) and, in turn, the International Ornithological Committee (IOC). We aim to implement relevant taxonomic changes twice a ...

The Tawny Owl is a species that favours woodland habitats, but it may also breed in larger rural and suburban gardens. Our most familiar owl, the Tawny Owl is found across Britain but is absent from ...

Breeds in open habitats, such as farmland. Resident and largely sedentary in habits. In excess of 4,000 breeding pairs. Green-listed Bird of Conservation Concern. The Barn Owl is a species of open ...