Raven BTO - British Trust for Ornithology
Corvids of the British Isles: how to identify, where to see them, and whether they are intelligent - Discover Wildlife
Brains and brawn' have allowed crows and ravens to thrive almost anywhere in the world
Ravens - Corvus corax - UK Safari
The dark, mysterious raven has been depicted in literature and legends through the ages. In some parts of the world the raven is a sign of death or
Raven species Poster | Painting / Wall Art / Nature Print / Bird Poster / Raven
Why Ravens and Crows Are Earth's Smartest Birds
Wildlife watch: the raven - Saga
A Raven Queen Vanishes, and Britain Checks a Prophecy - The New York Times