Yellow Wagtail is another species to look out for in August. While it has disappeared as a breeding species in many areas of the UK, on autumn migration there is a good chance of finding it anywhere ...

Join us for a special in-person conference marking three decades of citizen science –where garden sightings have fuelled groundbreaking research, informed conservation action, and connected people to ...

Obtaining measures of population size and fitness are key first steps to understanding how and why species' populations change over time. Quantifying such metrics is difficult in some species, however ...

Join us for a special in-person conference marking three decades of citizen science –where garden sightings have fuelled groundbreaking research, informed conservation action, and connected people to ...

We encourage volunteers to enter their own counts using the BBS Online web application. Please consider using our online data entry system if possible – we have lots of help and guidance to support ...

Bennett, S. & Weston, E. 2025. Growth of seaweed species on GLS logger attachments. Seabird 37: doi:10.61350/sbj.37.3 The authors thank the UK Centre for Ecology & Hydrology for facilitating the ...

Why are we conducting the Winter Bird Survey? The Winter Bird Survey will: Help us understand how wintering birds benefit from using agri-environment scheme and agri-environment and climate scheme ...

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, ...

Get to know your square Your Regional Organiser will give you the grid reference of your 1-km Winter Bird Survey square. To find the location of your square: Visit the Ordnance Survey website Enter ...

What skills do I need to take part? You need to be able to identify all the bird species that are likely to be encountered in your 1-km survey square during the non-breeding season. You also need to ...

Light-immersion data from geolocators can be used to estimate behavioural budgets and energetics in seabirds throughout the annual cycle. However, all methods used to categorise time spent in ...

About the surveyThe Winter Bird Survey is a UK-wide repeat of the 2018/19 English Winter Bird Survey. Like its forerunner, the Winter Bird Survey covers a single season, collecting important ...