Puerto Rican Nightjar vs Antillean Nighthawk
Antrostomus noctitherus 비교 대상 Chordeiles gundlachii
Side-by-Side Comparison
| 속성 | Puerto Rican Nightjar | Antillean Nighthawk |
|---|---|---|
| 학명 | Antrostomus noctitherus | Chordeiles gundlachii |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Caprimulgidae | Caprimulgidae |
| 보전 상태 | Vulnerable | Least Concern |
| 체장 | — | — |
| 날개 폭 | 26.5 cm (10.4 in) | 34.2 cm (13.5 in) |
| 체중 | 35.99 g (1.27 oz) | 56.05 g (1.98 oz) |
| 식성 | Catches large flying insects, especially moths, at night over Puerto Rican dry limestone forest; endangered. | Catches flying insects in aerial sallies over Caribbean open country and coastal scrub at dusk. |
| 산란 수 | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Puerto Rican Nightjar
Sharp 'took' or 'took-WHEEER'; distinctive two-note call; calls from dry coastal forest of Puerto Rico; endangered; calls less frequently than mainland relatives
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
Puerto Rican Nightjar
Endemic to Puerto Rico; critically endangered resident of karst limestone scrub and dry forest in the southwestern part of the island.
Antillean Nighthawk
Breeds in the Caribbean (Bahamas, Cuba, Cayman Islands, Jamaica) and Florida Keys; partially migratory within the Caribbean region.
보전 상태
Puerto Rican Nightjar
Antillean Nighthawk
How to Tell Them Apart
Puerto Rican Nightjar
Small; grey-brown and buff mottled above with dark vermiculations; white gorget in male; pale buff barred underparts; white outer tail spots in male; buff tail in female; critically small range …
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
Puerto Rican Nightjar
푸에르토리코 나이트자는 푸에르토리코에 서식하는 매우 희귀한 고유종 나이트자입니다. 석회암 지대와 건조한 숲에만 서식하며, 개체 수가 매우 적어 멸종위기에 처해 있습니다.
Antillean Nighthawk
안틸리스나이트호크(Chordeiles gundlachii)는 카리브해 섬들에 서식하는 나이트호크입니다. 여름에는 카리브해에서 번식하고 겨울에는 남아메리카로 이동합니다. 날개의 흰 띠가 특징입니다.