Edge of The Jungle
A Revision of the Classification of the Kingfishers
MILLER, W. DeW.
The Birds of British Somaliland and the Gulf of Aden: Their Life Histories, Breeding Habits, and Egg
Archer, Sir Geoffrey and Eva M. Godman
Illustrations by Archibald Thorburn and Henrik Gronvold
Belted Kingfisher: Birds of North America species account
Michael J. Hamas.
Green Kingfisher: Birds of North America species account
Kingfishers of Sub-Saharan Africa
Clancey, Phillip A.
The Auks: Alcidae (Oxford Bird Families of the World)
Gaston, Anthony J. and Ian L. Jones
Hornbills of the World: A Photographic Guide
Poonswad, P., A. Kemp, & M. Strange
The Hornbills: Bucerotiformes (Oxford Bird Families of the World)
Fry, C. Hilary
Illustrations by Karalus, Karl E.
A Comparative Study of Todies
Kepler, Angela Kay
The Ecology and Conservation of Asian Hornbills: Farmers of the Forest
KINNAIRD, Margaret F.; O'BRIEN Timothy G.
Illustrations by KINGDON, Jonathan