Historical reference: Do not rely on this information. It is very old. About this collection
Coccygomorphae, a group of birds in Huxley's classification, containing the cuckoos, kingfishers, goatsuckers, trogons, motmots, rollers, todies, hoopoes, hornbills, toucans, colies, bee-eaters, plantain-eaters, jacamars, and barbets.