Grey-rumped Treeswift
Hemiprocne longipennis
Treeswifts (Hemiprocnidae) · Apodiformes (Apodiformes)
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Often mixed up with
In quizzes, players most often confuse Grey-rumped Treeswift with these birds— either this species was picked by mistake, or the other way around.
| Species | Mix-ups |
|---|---|
| Dark-rumped Swift Apus acuticauda | 1 |
| Asian Palm Swift Cypsiurus balasiensis | 1 |
| Crested Treeswift Hemiprocne coronata | 1 |
Family
Treeswifts or crested swifts are a family, the Hemiprocnidae, of aerial birds, closely related to the true swifts. The family contains a single genus, Hemiprocne, with four species. They are distributed from India and Southeast Asia through Indonesia to New Guinea and the Solomon Islands.
Order
The Apodiformes 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).