Apodiformes
| Apodiformes Temporal range:  | |
|---|---|
| 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 | |
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| Worldwide range of the apodiformes. | |
| Synonyms | |
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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).