Title: Field Guide to the Birds of the Atlantic Islands: Canary Islands, Madeira, Azores, Cape Verde, Author: Tony Clarke
Title: Pittas, Broadbills and Asities: Second Edition, Author: Frank Lambert
Title: Sunbirds of the World: Sunbirds, Flowerpeckers, Spiderhunters and Sugarbirds, Second Edition, Author: Robert A. Cheke
Title: Sunbirds of the World: Sunbirds, Flowerpeckers, Spiderhunters and Sugarbirds, Second Edition, Author: Robert A. Cheke