Swifts: A Guide to the Swifts and Treeswifts of the World, First edition

Sitwell, Sacheverell

Swallows & Martins: An Identification Guide and Handbook [Helm]

Turner, Angela and Chris Rose

Bird Families of North America

Dunne, Pete and Kevin T. Karlson

Antbirds & Ovenbirds: Their Lives and Homes

Skutch, Alexander F.

Pelicans, Cormorants, and their Relatives: The Pelecaniformes

NELSON, J. Bryan

Illustrations by MACKAY, Andrew; BUSBY, John

Pigeons and Doves of the World, Third edition

Goodwin, Derek

Illustrations by Gillmor, Robert

Pheasants, Partridges, and Grouse: A Guide to the Pheasants, Partridges, Quails, Grouse, Guineafowl,

Madge, Steve; Kirwan, Guy M.; Mcgowan, Philip J.K.

Wrens, Dippers and Thrashers

Brewer, David

Illustrations by Barry Kent MacKay

The Handbook of Bird Families

Elphick, Jonathan

Waterfowl: An Identification Guide to the Ducks, Geese and Swans of the World

Madge, Steve and Hilary Burn

The Eagle Owl. Poyser Monographs

Penteriani, Vincenzo and Maria del Mar Delgado

Handbook of the Birds of Europe, the Middle East, and North Africa: Complete set [BWP]

CRAMP, Stanley, Chief Editor, et al.