Most of Mark's work is available either direct from Mark or through John Gray at www.strixeditions.co.uk, tel: 01206 853388.

Hawk & Owl Trust - conserving wild birds of prey and their habitats, information about putting up artificial nest sites for hawks, owls and falcons www.hawkandowl.org

World Owl Trust - conservation trust protecting owls around the world www.owls.org

International Owl Society - UK based society dealing with the conservation and captive breeding of owls www.international-owl-society.com

World Pheasant Association - Worldwide organisation dealing with conservation and captive breeding projects www.pheasant.org.uk

The Aspinall Foundation - Breeding of threatened species such as Gorillas at their zoo parks in Kent for reintroduction into the wild www.aspinallfoundation.org

The Wildlife Art Society - Promoting wildlife art by professional and amateur artists through their magazine, exhibitions and local groups www.twasi.com