Swamp Nightjar vs Antillean Nighthawk
Caprimulgus natalensis 比較対象 Chordeiles gundlachii
Side-by-Side Comparison
| 属性 | Swamp Nightjar | Antillean Nighthawk |
|---|---|---|
| 学名 | Caprimulgus natalensis | Chordeiles gundlachii |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 30.6 cm (12.0 in) | 34.2 cm (13.5 in) |
| 体重 | 76.3 g (2.69 oz) | 56.05 g (1.98 oz) |
| 食性 | Night-active aerial insectivore catching moths, beetles, and grasshoppers in sustained low-altitude hunting flights. | Catches flying insects in aerial sallies over Caribbean open country and coastal scrub at dusk. |
| 一腹卵数 | 2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Swamp Nightjar
Mellow churring trill; softer 'frog-like' chrrr from wetland margins; calls from papyrus and reed beds in Africa; lower and rounder than dryland nightjars
Antillean Nighthawk
Distinctive 'kill-and-dee-dick' or 'killydee'; buzzy nasal call audible overhead; faster and shorter phrasing than Common Nighthawk; Caribbean accent clear
Geographic Range & Migration
Swamp Nightjar
Known from a single wing found in Ethiopia's Nechisar National Park. Possibly extinct; range and taxonomy uncertain. Critically Endangered.
Antillean Nighthawk
Breeds in the Caribbean (Bahamas, Cuba, Cayman Islands, Jamaica) and Florida Keys; partially migratory within the Caribbean region.
保全状況
Swamp Nightjar
Antillean Nighthawk
How to Tell Them Apart
Swamp Nightjar
Relatively large; dark brown upperparts with heavy blackish streaking and pale buff spotting; broad white throat patch; underparts barred buff and dark brown; often shows paler underpart ground colour than …
Antillean Nighthawk
Brown and buff mottled above with dark brown streaking; white throat patch in male; barred buff-white underparts; white wing bar across primaries; white tail band in male; female has buff …
About These Birds
Swamp Nightjar
体長23〜24cmのサハラ以南アフリカの湿潤な草地・湿地に生息するヨタカ。白い喉斑が特徴。
Antillean Nighthawk
アンティルナイトホーク(Chordeiles gundlachii)はカリブ海の島々に生息するナイトホークです。フロリダキーズでも繁殖が確認されています。体長約20cmで、夜行性の昆虫食鳥です。海岸部の開けた生息地を好みます。