Puerto Rican Nightjar vs Lesser Nighthawk
Antrostomus noctitherus 비교 대상 Chordeiles acutipennis
Side-by-Side Comparison
| 속성 | Puerto Rican Nightjar | Lesser Nighthawk |
|---|---|---|
| 학명 | Antrostomus noctitherus | Chordeiles acutipennis |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Caprimulgidae | Caprimulgidae |
| 보전 상태 | Vulnerable | Least Concern |
| 체장 | — | — |
| 날개 폭 | 26.5 cm (10.4 in) | 33.0 cm (13.0 in) |
| 체중 | 35.99 g (1.27 oz) | 50.0 g (1.76 oz) |
| 식성 | Catches large flying insects, especially moths, at night over Puerto Rican dry limestone forest; endangered. | Hawks small flying insects at dusk and dawn over North and South American arid scrub … |
| 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
Lesser Nighthawk
Loud purring trill; buzzy 'brrrrr' given in flight; lower and softer than Common Nighthawk; males display with booming wingbeats; calls at dusk over deserts
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.
Lesser Nighthawk
Breeds in open arid scrub from southwestern USA south through Central America to western South America; winters in Mexico and northern South America.
보전 상태
Puerto Rican Nightjar
Lesser 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 …
Lesser Nighthawk
Brown and buff mottled above; buff-white below with brown barring; white throat in male; white wing bar closer to wingtip than in Common Nighthawk; buff tail band. Female with 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.
Lesser Nighthawk
소쏙독새(Chordeiles acutipennis)는 북아메리카 남부부터 남아메리카 북부까지 분포하는 야행성 새입니다. 날개에 흰 무늬가 있으며, 열린 서식지와 건조 지역을 선호합니다. 비행 중에 곤충을 포획합니다.