Lead author Johannes Erritzøe is a Danish author and naturalist whose previous books include Pittas of the World.

Clive Mann is an ornithologist from London, UK. An expert on the birds of Southeast Asia, his previous titles include Birds of Borneo and, with Robert Cheke, the Helm Identification Guide Sunbirds of the World.

Frederik Brammer is a Neotropical bird specialist from Sao Paolo, Brazil.

Richard Fuller is an ornithologist from the University of Durham, UK, who is currently a resident in Australia.
Johannes Erritzøe is a Danish author and naturalist whose previous books include Pittas of the World.
The late Clive F. Mann (1942–2022) taught biology in schools in Africa, South-east Asia and England. During the course of extensive fieldwork carried out during long sojourns in the tropics, he studied the population dynamics, breeding cycles, zoogeography and migration of birds, and the subject of his PhD was the taxonomy of passerines. Clive was a Fellow of the Linnean Society and a member of the British Ornithologists' Union, and he served for many years on the Committee of the British Ornithologists' Club, becoming its chairman from 2001 to 2005. He was also a trustee of the Trust for Avian Systematics (previously the Trust for Oriental Ornithology) for more than 20 years. He wrote numerous papers in scientific journals, The Birds of Borneo BOU Checklist and was a co-author of the Helm Identification Guide: Cuckoos of the World.