Antillean Nighthawk vs Sand-colored Nighthawk
Chordeiles gundlachii 比較対象 Chordeiles rupestris
Side-by-Side Comparison
| 属性 | Antillean Nighthawk | Sand-colored Nighthawk |
|---|---|---|
| 学名 | Chordeiles gundlachii | Chordeiles rupestris |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 34.2 cm (13.5 in) | 32.9 cm (13.0 in) |
| 体重 | 56.05 g (1.98 oz) | 52.25 g (1.84 oz) |
| 食性 | Catches flying insects in aerial sallies over Caribbean open country and coastal scrub at dusk. | Aerial insectivore; hawks insects over South American river sandbars and open areas, often in flocks. |
| 一腹卵数 | 1-2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Antillean Nighthawk
Distinctive 'kill-and-dee-dick' or 'killydee'; buzzy nasal call audible overhead; faster and shorter phrasing than Common Nighthawk; Caribbean accent clear
Sand-colored Nighthawk
Nasal, buzzy 'bzeent' calls; short buzzing trills; colonial roosters produce chorus of soft chirring notes; calls from sandy riverbanks at dusk
Geographic Range & Migration
Antillean Nighthawk
Breeds in the Caribbean (Bahamas, Cuba, Cayman Islands, Jamaica) and Florida Keys; partially migratory within the Caribbean region.
Sand-colored Nighthawk
Resident of sandy riverbanks and open savanna in the Amazon and Orinoco basins of Venezuela, Colombia, Peru, and Brazil.
保全状況
Antillean Nighthawk
Sand-colored Nighthawk
How to Tell Them Apart
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 …
Sand-colored Nighthawk
Pale sandy-buff overall with dark brown vermiculations; white throat and lower underparts; bold white wing bar; white tail with dark terminal band; paler coloration than other nighthawks suits sandy riverbank …
About These Birds
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。
Sand-colored Nighthawk
サンドカラードナイトホーク(Chordeiles rupestris)はアマゾン川流域の砂洲や河岸に生息するナイトホークです。砂地に偽装した羽毛が特徴で、地面に産んだ卵は周囲に溶け込みます。薄明時に昆虫を捕食する夜行性の鳥です。