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 ...

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 ...

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 ...

Papers Environmental and Geographic Conditions on the Breeding Grounds Drive Bergmannian Clines in Nightjars On this page Journal of Biogeography, 2025 Staff Author (s) ...

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 ...

Estimates of breeding seabird populations are used to assess the potential impacts of proposed wind farm developments. The approach used in these assessments is known as the Biologically Defined ...

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 ...

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 ...

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 ...