Mascarene Swiftlet vs Black Spinetail
Aerodramus francicus 对比 Telacanthura melanopygia
Side-by-Side Comparison
| 属性 | Mascarene Swiftlet | Black Spinetail |
|---|---|---|
| 学名 | Aerodramus francicus | Telacanthura melanopygia |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Near Threatened | Least Concern |
| 体长 | — | — |
| 翼展 | 21.8 cm (8.6 in) | 32.4 cm (12.8 in) |
| 体重 | 10.419999999999998 g (0.37 oz) | 52.0 g (1.83 oz) |
| 食性 | Aerial insectivore consuming minute dipterans, midges, and ballooning spiders caught in continuous fast flight. | High-speed aerial insectivore catching small flying insects and aerial spiders during fast sustained flight. |
| 产卵数 | 1-2 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Mascarene Swiftlet
Thin, rapid chittering; soft 'tsit' notes over Reunion and Mauritius; echolocation clicks in cave roosts; endemic island species; calls weakly; colonial roosting produces faint noise
Black Spinetail
Deep, resonant chattering with gravelly undertones; series of rough churring notes interspersed with sharp screaming calls.
Geographic Range & Migration
Mascarene Swiftlet
Endemic to the Mascarene Islands of Réunion and Mauritius in the southwestern Indian Ocean. Nests in sea caves and rock crevices.
Black Spinetail
Found in West and Central Africa from Nigeria and Cameroon east to Uganda. Resident in lowland rainforest and forest edge.
保护状况
Mascarene Swiftlet
Black Spinetail
How to Tell Them Apart
Mascarene Swiftlet
Small; dark blackish-brown upperparts with slight greenish gloss; pale buff-grey rump band; pale grey-white underparts; forked tail; Mascarene Island endemic of Réunion and Mauritius with slightly dusky-toned underparts.
Black Spinetail
Large; entirely black plumage with slight gloss; black rump unlike white-rumped congeners; underparts dark; spiny tail; West African forest species; all-black coloration with no contrasting markings distinguishes it from all …
About These Birds
Mascarene Swiftlet
一种小型金丝燕（体长10-11厘米），特产于西印度洋的毛里求斯和留尼汪岛。体羽深褐色。属雨燕科（Apodidae），在岛上的洞穴中繁殖，是两岛的特有种。
Black Spinetail
A medium-sized spinetail swift (14-15 cm) of lowland rainforests in West and Central Africa. All-dark plumage. Spine-tipped tail for bracing against tree trunks. Aerial insectivore, foraging above the forest canopy. Nests inside hollow trees. Uncommon and seldom observed.