Juliet Vickery has received funding from the UK government through the Darwin Initiative. Viola Ross-Smith and David Noble of the British Trust for Ornithology helped write this article. The red list ...

Nottingham Trent University provides funding as a member of The Conversation UK. The assessment used data collected on 546 bird species to estimate population sizes and trends throughout Europe.

A superb fairy-wren calls to a Horsfield's bronze-cuckoo. Brood parasites like cuckoos lay eggs in other birds' nests and leave them behind for the host birds to raise. David Ongley / Cornell Lab of ...

Sparrow populations have declined by 70% since 1970 in the UK. This is what you can do to help them.