From England to Northern Ireland, Scotland and Wales, BTO welcomes everyone to get involved wherever they are—and works to make sure its monitoring projects cover the whole of the UK.

Join BTO Get exclusive content and benefits with BTO membership, all while supporting our crucial work.

Biology Lifecycle and body size information for Red-crested Pochard, including statistics on nesting, eggs and lifespan based on BTO ringing and nest recording data.

The heart of BTO encompasses three key areas: birds, science, people. We work to secure a better future for birds and nature, using our science, monitoring and data to inform good environmental …

My BTO is currently unavailable due to scheduled maintenance. During this time, registering for surveys, logging into your My BTO account and making any payments will not be possible.

BTO collects, analyses, reports on and offers a wide range of data including facts and figures on British birds (including bats and butterflies), trends in numbers and breeding performance over 50 years and …

It applies to all BTO activities, whether online (including meetings and events, telephone, letter, and email) or offline (any face-to-face interaction). We've also written some guidance for volunteer …

Birdfacts is based on data collected by volunteers participating in surveys that are organised and funded by BTO, RSPB, Esmée Fairbairn Foundation, JNCC and other partners.

Birdfacts is based on data collected by volunteers participating in surveys that are organised and funded by BTO, RSPB, Esmée Fairbairn Foundation, JNCC and other partners.

BirdFacts provides up-to-date information on the status and ecology of birds in the UK, drawing on information collated by BTO and partner organisations through our citizen science surveys and …