Costa Rican Swift vs Chestnut-collared Swift
Chaetura fumosa 比較対象 Streptoprocne rutila
Side-by-Side Comparison
| 属性 | Costa Rican Swift | Chestnut-collared Swift |
|---|---|---|
| 学名 | Chaetura fumosa | Streptoprocne rutila |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 21.2 cm (8.3 in) | 26.0 cm (10.2 in) |
| 体重 | 18.2 g (0.64 oz) | 21.8 g (0.77 oz) |
| 食性 | Entirely airborne feeder on tiny flies, gnats, and airborne arachnids; one of the most aerial … | Entirely airborne feeder on tiny flies, gnats, and airborne arachnids; one of the most aerial … |
| 一腹卵数 | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Costa Rican Swift
Thin, insect-like buzz alternating with soft clicks; delicate high trill delivered during swift wheeling flight over valleys.
Chestnut-collared Swift
High, screaming trill; rapid 'scree-scree' in flight; shrill and penetrating; calls over Neotropical mountains and canyon edges; alarm a rapid screeching chatter
Geographic Range & Migration
Costa Rican Swift
Found along the Pacific slope of Costa Rica and Panama. Resident in lowland and foothill forest and forest edge below 1,000 m.
Chestnut-collared Swift
Found from Mexico and the Caribbean south through Central America and South America to Argentina. Resident in highlands near mountain cliffs.
保全状況
Costa Rican Swift
Chestnut-collared Swift
How to Tell Them Apart
Costa Rican Swift
Small; uniformly dark sooty-brown with rump barely paler than dark back; underparts dark grey-brown; short spiny tail; Central American Pacific slope species; exceptionally dark and uniform compared to most Chaetura …
Chestnut-collared Swift
Dark blackish-brown body with diagnostic rich chestnut collar encircling entire neck; collar bold and complete; underparts slightly paler brown; small swift with striking warm-toned neck band contrasting vividly with dark …
About These Birds
Costa Rican Swift
コスタリカ太平洋斜面とパナマ西部固有の小型アマツバメ（11 cm）。淡い灰色の腰帯を持つ暗い羽衣。棘状の尾。湿潤林の林冠上を飛翔する空中昆虫食性。詳細不明。
Chestnut-collared Swift
チェストナットカラードスウィフトは中央アメリカと南アメリカ北部の山岳地帯に生息するアマツバメである。