Bornean Swiftlet vs White-collared Swift

Collocalia dodgei compared with Streptoprocne zonaris

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Side-by-Side Comparison

Attribute Bornean Swiftlet White-collared Swift
Scientific Name Collocalia dodgei Streptoprocne zonaris
Order Caprimulgiformes Caprimulgiformes
Family Apodidae Apodidae
Conservation Status Not Evaluated Least Concern
Length
Wingspan 42.5 cm (16.7 in)
Weight 6.1 g (0.22 oz) 106.45 g (3.75 oz)
Diet Small aerial insectivore feeding on minute flying insects and spiders; forages over forest canopy and … Obligate aerial insectivore; gathers small flying insects, winged ants, and airborne spiders during flight.
Clutch Size -- 2
Population Trend
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Habitat Comparison

Shared Habitats

Bornean Swiftlet only

None

White-collared Swift only

None

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Song & Call Comparison

Bornean Swiftlet

Song

High thin twittering; soft 'tsit' notes over Borneo mountains; echolocation in cave roosts; tiny highland swiftlet; call weakly audible; soft rapid chittering in flight

White-collared Swift

Song

Loud, screaming 'shreee-shreee'; powerful screeching trill; calls from large flocks over mountains; very audible; one of the loudest Neotropical swifts; alarm a harsh rattle

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Geographic Range & Migration

Bornean Swiftlet

Endemic to Borneo in lowland dipterocarp forest and hill forest. Closely related to Glossy Swiftlet; range barely extends to Palawan.

White-collared Swift

Found from Mexico south through Central America to South America east of the Andes, reaching Bolivia and southern Brazil. Often in large flocks.

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Conservation Status

Not Evaluated

Bornean Swiftlet

Least Concern

White-collared Swift

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How to Tell Them Apart

Bornean Swiftlet

Plumage

Tiny; dark glossy blue-green upperparts; pale whitish rump band; dark sooty-grey underparts; forked tail; Borneo endemic restricted to montane zones; similar to Glossy Swiftlet but less white below and confined …

White-collared Swift

Plumage

Large; glossy blue-black plumage with bold broad white collar encircling entire neck; collar clean and complete; underparts black; large slightly forked tail; among the most recognisable Neotropical swifts due to …

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About These Birds

Bornean Swiftlet

A small swiftlet (9-10 cm) endemic to montane forests of northern Borneo at 900-3,400 m elevation. Dark glossy plumage. Aerial insectivore. Colonial cave nester. Restricted to high-altitude caves on Mount Kinabalu and neighboring peaks. Limited ecological data.

White-collared Swift

A very large swift (20-22 cm, wingspan 45-55 cm) with a bold white collar band, the largest New World swift. Found from Mexico to southern Brazil and the Caribbean. Aerial insectivore, foraging in large, noisy flocks over forests and cities. Nests behind waterfalls and in caves.

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