Kiwi

The white-tailed eagle, the UK’s largest bird of prey, was brought back from extinction – and it all started with an ambitious project on a mountainous Scottish island, half a century ago...

Birds of prey in flight have a reputation for being very tough to identify. However, follow these guidelines and you have a good chance of telling these five larger species apart. Note photos are not to scale.

WE CONTINUE OUR 40TH BIRTHDAY CELEBRATIONS BY HIGHLIGHTING OUR FAVOURITE WILDLIFE SPOTS ACROSS THE UK COMPILED BY LISA HARRIS

PHOTOS, LETTERS, TWEETS, QUESTIONS – HAVE YOUR SAY

This month’s challenge is all about the identification of long-legged birds

Scourge of the bird feeder and a master of ‘shock and awe’ assassinations, the sparrowhawk pursues its quarry with such tenacity and unpredictability that it often blindsides its prey