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Mariana Swiftlet

Aerodramus bartschi

Vulnerable
Flügelspannweite
17,7 cm
Gewicht
7,25 g
Familie
Apodidae
Ordnung
Caprimulgiformes

Über uns

A small swiftlet (10-11 cm) endemic to the Mariana Islands of the western Pacific (Guam, Saipan, Rota, Tinian). Dark brown plumage. Aerial insectivore. Colonial cave nester using echolocation. Population severely declined on Guam due to the brown tree snake.

Physical Description

Measurement Value Imperial
Flügelspannweite 17,7 cm 7.0 in
Gewicht 7,25 g 0.26 oz

Identifizierung

Gefieder

Tiny; dark brownish-black upperparts; pale grey-buff rump band; underparts pale whitish-grey; forked tail; Mariana Islands endemic and vulnerable; very small for the genus with concolorous brownish tone and subdued rump contrast.

Habitat & Range

Geografisches Verbreitungsgebiet

Endemic to the Mariana Islands (Guam, Saipan, and adjacent islands). Resident in forested areas; nests in limestone caves. Endangered on Guam.

Diet & Feeding

Entirely airborne insectivore; feeds on minute flying insects and web-dispersing spiders over open habitats.

Erhaltungsstatus

Vulnerable
IUCN Red List

Verhalten & Brutverhalten

Nistverhalten

Nest type: HC.

Gelegegröße

1

Lautgebung

Gesang

Very high, thin twittering; tiny and high-pitched; 'tsit-tsit' over Guam and Saipan; audible echolocation clicks in cave roosts; endangered; vocal mainly near nesting caves

Taxonomie

Kingdom Animalia
Phylum Chordata
Class Aves
Ordnung Caprimulgiformes (Nachtschwalben und Segler)
Familie Apodidae (Segler)
Genus Aerodramus
Arten Aerodramus bartschi

Distribution

Mariana Swiftlet has been recorded in 2 countries.

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Vorhanden Not recorded
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countries highlighted

External Databases

Häufig gestellte Fragen

What does the Mariana Swiftlet eat?
Entirely airborne insectivore; feeds on minute flying insects and web-dispersing spiders over open habitats.
Where does the Mariana Swiftlet live?
Endemic to the Mariana Islands (Guam, Saipan, and adjacent islands). Resident in forested areas; nests in limestone caves. Endangered on Guam.
Is the Mariana Swiftlet endangered?
The Mariana Swiftlet has a conservation status of Vulnerable.
How does the Mariana Swiftlet nest?
Nest type: HC.
What does the Mariana Swiftlet sound like?
Very high, thin twittering; tiny and high-pitched; 'tsit-tsit' over Guam and Saipan; audible echolocation clicks in cave roosts; endangered; vocal mainly near nesting caves
How big is the Mariana Swiftlet?
The Mariana Swiftlet has a wingspan of 17.7 cm, weight of 7.25 g.
What order and family does the Mariana Swiftlet belong to?
The Mariana Swiftlet (Aerodramus bartschi) belongs to the order Caprimulgiformes and the family Apodidae.

Similar Birds

Other species in the Apodidae family

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