Apodiformes

Bird order - Apodiformes is revised to include only the dirurnal treeswifts, swifts and hummingbirds. Along with the nocturnal nightjars, oilbird, potoos, frogmouths, and owlet-nightjars it forms Strisores which is a basal clade of Neoaves.

Hemiprocnidae
Apodidae
Trochilidae