The publications We had a fantastic response to our for contributions for a special issue of Bird Study, documenting and exploring the impacts of the unprecedented recent outbreaks of Highly ...

Southern, H.N. 1951. Change in status of the Bridled Guillemot after ten years. Proceedings of Zoological Society of London.

The WeBS and GSMP Partnerships WeBS is a partnership jointly funded by BTO, RSPB and JNCC, with fieldwork conducted by volunteers and previous support from WWT. The permanent members of the WeBS ...

Cuckoos are a widespread and familiar bird across much of the UK, and many people can recognise the famously onomatopoeic song, but sadly we have lost more than a third of our breeding Cuckoos since ...

Waterbirds in the UK presents the results of the annual BTO/RSPB/JNCC Wetland Bird Survey (WeBS) report. Since 2022, Waterbirds in the UK is also the primary reporting mechanism for ...

How will Blackbirds in Gardens help? This survey will help us understand the potential for disease transmission by Blackbirds in gardens by looking at the number of birds that occur together. It will ...

There are two quite different things that affect the number of reports of ringed birds we receive: the chance a bird will die (and conversely the survival rate, which is what we are interested in) and ...

Visit datesThe Winter Ringing Project is the first standardised ringing project to focus on monitoring passerines in winter. The project began as a pilot scheme over the winter of 2020/21, using a ...

Early May Laying a clutch of eggs This is an exhausting time for the female. She lays one egg a day during early May, usually first thing in the morning. Blue Tits have one of the largest clutch sizes ...

Thank you for your interest in working with BTO. Whether full-time, part-time or a temporary placement, here’s where you'll find our latest vacancies, work experience, volunteering and opportunities ...

The British and Irish Ringing Scheme is organised by BTO. Over 900,000 birds are ringed in Britain and Ireland each year by over 2,600 trained ringers, most of whom are volunteers. You can help by ...

Not too close to another nest box Nest boxes of the same type should not be sited too close together as this may promote aggressive behaviour between neighbours. Shelter your box from the weather The ...