
Cave Swiftlet
Cave Swiftlet
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The Cave Swiftlet is a common and widespread swiftlet species across Southeast Asia, renowned for its strong association with caves for nesting and roosting. It is an incredibly agile flyer, spending most of its life airborne.
Where to spot
Widespread throughout Southeast Asia, including countries like Indonesia, Malaysia, Thailand, and the Philippines. Commonly found near cave systems, forests, and often foraging over open landscapes and urban areas.
How to spot
Look for its streamlined silhouette and rapid, erratic flight. Observe large groups flying in and out of cave entrances. Its smaller size and often paler underparts can help distinguish it from other swiftlets in the field.
When to spot
Year-round resident, most active during daylight hours. Large numbers can be observed entering and exiting caves around dawn and dusk.
Where to spot
Widespread throughout Southeast Asia, including countries like Indonesia, Malaysia, Thailand, and the Philippines. Commonly found near cave systems, forests, and often foraging over open landscapes and urban areas.
How to spot
Look for its streamlined silhouette and rapid, erratic flight. Observe large groups flying in and out of cave entrances. Its smaller size and often paler underparts can help distinguish it from other swiftlets in the field.
When to spot
Year-round resident, most active during daylight hours. Large numbers can be observed entering and exiting caves around dawn and dusk.
This species is famous for building its cup-shaped nests almost entirely from solidified saliva, which are highly prized as 'edible bird's nests' in some cultures.
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