Many of the wild fruits and berries eaten by birds are dangerous for humans. Birds are able to consume them safely because they have evolved different metabolic tolerances to toxins and different ...

Common and Arctic Terns are very similar in appearance and habits - so much so that they are often referred to as 'Commic Terns' when they can't be told apart! However, with practice, it is possible ...

A key step in understanding the possible impacts of a proposed windfarm development is to identify potential interactions between seabird breeding colonies and the proposed development areas. Such ...

Our provisional results show many more 10-km squares to be occupied compared with the 1988-91 Breeding Atlas. In Britain 30% more 10-km squares are occupied, and in Ireland the figure is 68%. Some of ...

Further information about methods for taking biometrics measurements can be found in Chapter 11 of the Ringers' Manual.

This report details work to evaluate two approaches for producing maps of relative abundance from BTO/JNCC/RSPB Breeding Bird Survey data. These maps could be useful for setting local conservation ...

The Wetland Bird Survey (WeBS) is the principal scheme for monitoring the UK’s wintering waterbird populations, providing an important indicator of their status and the health of wetlands. Survey ...

Britain is internationally important for wintering waterbirds due to its temperate maritime climate, extensive network of productive estuarine and inland wetland habitats, and geographical location ...

Written and illustrated by experts, this guide contains a wealth of information for 145 British and Irish species, together with introductory sections on nest-monitoring techniques, nest ...

To celebrate the first season of Cudyll Cymru and the valuable data it is generating, we are hosting our inaugural Welsh Raptor Convention on 31st January 2026 at Aberystwyth University. We hope the ...

Seabird Population Trends and Causes of Change: 1986–2023 documents changes in the abundance and productivity of breeding seabirds in Britain and Ireland from 1986 to 2023, including data for both ...