River King is Martin's latest book about the kingfisher, discovering the secrets of this majestic iconic bird of Britain's rivers and streams, engaging with wildlife and exploring the great outdoors
To be in with a chance to win one of 5 copies of the book, we want you to answer this question:
How does a kingfisher swallow fish?
a) Tail first
b) Head first
Send your fact, along with your name, age and address to the below:
By post: Wildlife Watch, The Kiln, Mather Road, Newark, NG24 1WT
Closing date: 30th April 2017