The White-tailed Trogon is found in the Amazon and Orinoco basins. ( Ridgely & Greenfield treat the subspecies T.v. chionurus found from Panama and the Pacific coast of Colombia and Ecuador as a separate species which they call Western White-tailed Trogon. This is on the basis of plumage differences, especially all white undertails, and different voices.) There is a disjunct population in eastern Brazil.

It inhabits a variety of forest and woodland habitats where it feeds on fruits, berries and insects.

They usually excavate a nest hole out of a termite nest in a tree.

The female, seen here in photos 3, 4 and 5, is grey rather than green and violet and has more black on the tail but still has the yellow belly and the pale blue eye-ring.

There are recordings on xeno-canto, a distribution map from NatureServe and additional information available via Avibase. There is a page in Portuguese on Wikiaves.