Eucavitaves
Eucavitaves is a clade that contain the order Trogoniformes and the clade Picocoraciae. The name refers to the fact that the majority of them nest in cavities.
Cladogram of Eucavitaves relationships based on Jarvis, E.D. et al. with some clade names after Yuri, T. et al. and Kimball 2013.