Trevor BoyerBooksGuide to birdsPocket Guide to Ducks of Britain and the Northern HemisphereDucks of BritainDucks of Britain and the northern hemisphereBirds of CanadaBirds Sticker BookAmerican Nature Guides Ducks of North AmericaMANCHOT EMPEREUR -LEPenguinsVanishing eaglesWildfowl by Trevor BoyerAuthor data: Open Library
