Most Popular Books
- Illustrated Checklist of the Birds of the World, Volume 1: Non-passerines
- Threatened Birds of the Americas: The ICBP/IUCN Red Data Book (Third Edition, Part 2)
- Birds & People Bonds in a Timele
- Birds to Watch 2: The World List of Threatened Birds
- Birds to Watch: I.C.P.B. World Checklist of Threatened Birds No. 1
