- Birds, Mammals, and Reptiles of the Galápagos Islands: An Identification Guide
- The World's Rarest Birds
- Britain's Birds: An Identification Guide to the Birds of Great Britain and Ireland
- Britain's Day-Flying Moths: A Field Guide to the Day-Flying Moths of Britain and Ireland
- Europe's Sea Mammals Including the Azores, Madeira, the Canary Islands and Cape Verde: A Field Guide to the Whales, Dolphins, Porpoises and Seals