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 ...
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 ...
House Sparrow perched on a beam, by Amy Lewis / BTO The UK is home to 73 million fewer birds today than it was in 1970, according to research from the British Trust for Ornithology (BTO) published ...
For migrant birds, there are both ‘push’ and ‘pull’ factors that drive their migration. Typically, it’s a mix of factors. Different species also migrate at different times, and in different ways - in ...
Climate change is a major threat to biodiversity, and migratory birds such as the Swallow and Willow Warbler are particularly vulnerable, due partly to their reliance on reliable sources of food and ...
A devastating wave of high pathogenicity avian influenza (HPAI / bird flu) has triggered an unprecedented global wildlife emergency, decimating seabird and waterbird colonies across the UK and beyond.
A new report published today by the British Trust for Ornithology (BTO), in partnership with RSPB and JNCC, reveals impacts of Avian Influenza on Mute Swans across the UK. The Wetland Bird Survey ...
The report provides a single, comprehensive source of information on the current status and distribution of waterbirds in the UK for those interested in the conservation of the populations of these ...
Research undertaken by the British Trust for Ornithology (BTO) predicts that the Red Kite population of Wales is likely to be resilient to the development of future wind farms. It is widely understood ...
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