BIRDGACHA / FIELD NOTES

Swifts

Swifts are highly aerial birds with narrow, swept wings, compact bodies and small bills opening into wide mouths. Their silhouette can look sickle-shaped, although size, tail shape and pale markings vary greatly among the family's species. Examples include Spot-fronted Swift (Cypseloides cherriei), Tepui Swift (Streptoprocne phelpsi), and Giant Swiftlet (Hydrochous gigas). Airborne insects are captured in flight, and extended periods in the air make moving silhouettes especially important. Compare wing shape and the location of pale patches as birds turn against the sky.

How to recognize Swifts

Compare the swept wing shape with the proportion of the body.
Check tail length, any fork and the position of pale rump markings.
Watch the flight style over several turns rather than one wing position.

Where they live

The family occurs in many tropical and temperate regions across the world. Feeding birds range over forests, open country, settlements and water, wherever aerial insects are available. Nesting requirements are more specific: different species use cliffs, caves, tree cavities or structures in human settlements. Distinguish the broad area used for feeding flights from the particular places used for nesting or roosting.

Species accounts: Spot-fronted Swift · Tepui Swift · Giant Swiftlet

Sources — natural history: Wikipedia: Swifts · Cornell Birds of the World: Tepui Swift (Streptoprocne phelpsi), species natural history.

Classification: IOC World Bird List: family names and classification.

Some Cornell Birds of the World account sections require a subscription.

Updated 2026-11-06. Species counts follow this site's catalogue. This is an editorial summary, not an expert peer review.