Mariana Swiftlet
Aerodramus bartschi
Mariana Swiftlet (Aerodramus bartschi) — Swifts of Oceans & Seabirds.
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The Mariana Swiftlet (Aerodramus bartschi) is a member of the Apodidae family found in Oceans & Seabirds. Adults weigh 7.4 g. The IUCN Red List lists it as Vulnerable.
Conservation status
IUCN Red List (opens in a new tab)Facing a high risk of extinction in the wild.
Where it fits
- Class Aves
- Order Apodiformes
- Family Apodidae Swifts
- Genus Aerodramus
- Species bartschi
Where it lives
Saipan, Aguijan; extinct Rota and Tinian (southern Northern Mariana Is., western Micronesia)
Quick facts
- Weight
- 7.4 g
- Diet
- Invertebrate-eaters
- Family
- Apodidae
- Order
- Apodiformes
- Habitat
- Woodland
How to identify
Similar birds
Least Concern
Not Evaluated
Not Evaluated
Not Evaluated
Biology & behaviour
Diet
The Mariana Swiftlet is a invertivore — it feeds mainly on invertebrates such as insects and other small prey.
Behaviour
A bird of dense forest, it is highly aerial, spending much of its time on the wing.
Migration
The Mariana Swiftlet is largely sedentary, staying within its range year-round rather than making regular long-distance migrations.
The Mariana Swiftlet (Aerodramus bartschi) belongs to the Apodidae family of the order Apodiformes. It is found across Oceans & Seabirds. Its distribution covers PO Saipan, Aguijan; extinct Rota and Tinian (s Northern Mariana Is., w Micronesia).
It is a very small bird. Adults weighs around 7.4 g, with a wing length of about 8.9 cm and a tail of around 4.1 cm.
It is classified as Vulnerable on the IUCN Red List and is a focus of conservation concern. Vulnerable species face a high risk of extinction in the wild if pressures continue.
The species has a mapped global range of roughly 692 km² — a relatively restricted global range.
Frequently asked questions
How big is the Mariana Swiftlet?
The Mariana Swiftlet is a very small bird that weighs around 7.4 g.
Where does the Mariana Swiftlet live?
The Mariana Swiftlet is found across Oceans & Seabirds with a range covering PO Saipan, Aguijan; extinct Rota and Tinian (s Northern Mariana Is., w Micronesia), where it favours woodland, forest and well-treed country.
What family does the Mariana Swiftlet belong to?
The Mariana Swiftlet (Aerodramus bartschi) belongs to the Apodidae family, in the order Apodiformes.
What does the Mariana Swiftlet eat?
The Mariana Swiftlet is a invertivore — it feeds mainly on invertebrates such as insects and other small prey.
Does the Mariana Swiftlet migrate?
The Mariana Swiftlet is largely sedentary, staying within its range year-round rather than making regular long-distance migrations.
Is the Mariana Swiftlet endangered?
It is classified as Vulnerable on the IUCN Red List and is a focus of conservation concern Vulnerable species face a high risk of extinction in the wild if pressures continue.
How large is the Mariana Swiftlet's range?
The Mariana Swiftlet has a mapped global range of about 692 km².
Conservation
Every bird benefits from bird-safe windows, native plants, and keeping cats indoors. Small changes at home add up to real protection.
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