British Trust for Ornithology (BTO)

The British Trust for Ornithology (BTO) is a UK charity that focuses on understanding birds and, in particular, how and why bird populations are changing.

Recent articles by British Trust for Ornithology (BTO)

Tree sparrow © John Harding/BTO

Tree sparrow guide: diet, size, where they live and how to identify

© Mark R Taylor/BTO

Nuthatch guide: the best time to see them, how to identify – and why they’re called nuthatches

© Edmund Fellowes

Siskins: what they look like and how to attract them to your garden

A lesser redpoll

Lesser redpoll: what they are, what they eat and how to identify

© John Harding/BTO

Great spotted woodpecker guide: what they eat and how to identify

John Harding/BTO

Goldcrest guide: how big they are, what they eat – and how to identify

A beautiful Fieldfare

Fieldfare guide: what they eat, when they come to Britain and how to identify

Marsh tit © Jill Pakenham/BTO

Marsh tit or willow tit? what’s the difference?

Close-up of a male ring ouzel perching on wooden post

Ring ouzel guide: how to identify, and when and where to see

A Bohemian waxwing hanging onto a tree.

Bohemian waxwing guide: when and why they visit the UK, how to identify and what an irruption is

© John Harding/BTO

Starling guide: what they eat, where to see them and other key facts

Collared dove (Streptopelia decaocto). © Tim Oram/Getty

Collared dove guide: how to identify, the connection to an Ancient Greek legend, and when they arrived in the UK

Robin (Erithacus rubecula) in spring

European robin guide: diet, habitat and species facts

A long-tailed tit on a branch. © Linda Lyon/Getty

Long-tailed tit guide: how to identify, what they sound like, and what to feed them

Blue tit perched on the branch of a spring flowering crab apple tree

British garden birds guide: how to identify different species and attract them to your garden