This is the definitive book on the seabirds of the world, describing virtually all the known species. Illustrated in color – covers all 312 species of seabirds on 88 full colored plates, and a foreword by Roger Tory Peterson.Excellent coverage of gulls.
Amazon Review:
Amazon: Seabirds: An Identification Guide
July 24, 1997
“Before Peter Harrison: “Hmm, that was some kind of sea-gull wasn’t it?”
After Peter Harrison: “By Jove, what a fine example of a juvenile female intermediate-morph Pomarine Jaeger!”