Welcome to the BTO

Looking out for birds? Share your interest in birds with others by being part of the BTO. Volunteer surveyors, members and staff work in partnership to provide unbiased information about birds and their habitats. Join or volunteer today and make birds count!

Latest from WeBS

The latest Wetland Birds Survey report is published today. Thanks to the thousands of volunteers who take part we can see how the birds that use our wetlands are doing. Mallard and Shelduck continue to decline whilst Avocet and Black-tailed Godwit are on the up. Read more here.


Two tagged Cuckoos are back

Two of our satellite tagged Cuckoos have made it back to the UK. Hennah was the first back, with Dudley hot on his heels. Five birds are currently in Spain and three are still on the southern edge of the Sahara. Follow them here as they head for home.

Joining the dots using bird and butterfly data

By working with Butterfly Conservation (BC), we have been able to test the extent that sites with a greater abundance of birds also support other wildlife, in this case, butterflies and so see the effect of environmental change on a relatively small scale. To celebrate our collaboration we have a unique 2 for 1 special offer where you can support the work of the BTO and BC by joining both for just £30.

House Martin by Peter Dedicoat

Select a square for the House Martin Survey

We’re looking for volunteers to take on a 1-km square for the new House Martin Survey this year. Just three visits are required from late May onwards. Have a look at the available random squares to see if there is a square near you. The survey requires you to find and map House Martin colonies in the square and to count occupied nests.

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