Apodiformes

Apodiformes Temporal range: Late Paleocene to present
A bee hummingbird (Mellisuga helenae), the smallest bird on earth.
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Clade:	Strisores
Clade:	Daedalornithes
Order:	Apodiformes Peters, 1940
Families
†Aegialornithidae †Cypselavidae †Eocypselidae †Jungornithidae Apodidae Hemiprocnidae Trochilidae
Worldwide range of the apodiformes.
Synonyms
Trochiliformes Wagler, 1830

The Apodiformes /ˈæpədɪfɔːrmiːz/ is an order, or taxonomic grouping, of birds which traditionally contained three living families—the Apodidae (swifts), the Hemiprocnidae (treeswifts), and the Trochilidae (hummingbirds); however, in the Sibley-Ahlquist taxonomy, this order is elevated to the superorder Apodimorphae, in which hummingbirds are separated into a new order, the Trochiliformes. With nearly 450 species identified to date, it is the most diverse order of birds after the Passeriformes (the "perching" birds).