Mariana Swiftlet
Aerodramus bartschi
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<birdfyi-bird slug="aerodramus-bartschi"></birdfyi-bird>The Mariana Swiftlet (Aerodramus bartschi) is a bird species in the family Apodidae (swifts), within the order Caprimulgiformes (nightjars & swifts). Recorded measurements include a wingspan of 17.7 cm and a weight of 7.2 g. The IUCN Red List classifies it as Vulnerable.
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について
グアムアナツバメはグアムとマリアナ諸島に固有のアナツバメで、個体数が減少している絶滅危惧種である。
Physical Description
| Measurement | Value | Imperial |
|---|---|---|
| 翼開長 | 17.7 cm | 7.0 in |
| 体重 | 7.25 g | 0.26 oz |
識別
羽毛
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
分布域
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.
保全状況
行動と繁殖
営巣
Nest type: HC.
一腹卵数
1
鳴き声
さえずり
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
分類学
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Aves |
| 目 | Caprimulgiformes (Nightjars & Swifts) |
| 科 | Apodidae (Swifts) |
| Genus | Aerodramus |
| 種 | Aerodramus bartschi |
Distribution
Mariana Swiftlet has been recorded in 2 countries.
countries highlighted
External Databases
よくある質問
What does the Mariana Swiftlet eat?
Where does the Mariana Swiftlet live?
Is the Mariana Swiftlet endangered?
How does the Mariana Swiftlet nest?
What does the Mariana Swiftlet sound like?
How big is the Mariana Swiftlet?
What order and family does the Mariana Swiftlet belong to?
Similar Birds
Other species in the Apodidae family