Puerto Rican Nightjar vs Spotted Nightjar
Antrostomus noctitherus 비교 대상 Eurostopodus argus
Side-by-Side Comparison
| 속성 | Puerto Rican Nightjar | Spotted Nightjar |
|---|---|---|
| 학명 | Antrostomus noctitherus | Eurostopodus argus |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Caprimulgidae | Caprimulgidae |
| 보전 상태 | Vulnerable | Least Concern |
| 체장 | — | — |
| 날개 폭 | 26.5 cm (10.4 in) | 42.7 cm (16.8 in) |
| 체중 | 35.99 g (1.27 oz) | 102.5 g (3.62 oz) |
| 식성 | Catches large flying insects, especially moths, at night over Puerto Rican dry limestone forest; endangered. | Aerial insectivore; hawks large moths, beetles, and flying insects at dusk and dawn over Australian … |
| 산란 수 | 1-2 | 1 |
| 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
Spotted Nightjar
Loud churring 'good-lord-deliver-us' repeated at dusk; melodic bubbling quality; also emits hollow 'cow-cow-cow' series and soft frog-like croaking
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.
Spotted Nightjar
Resident and partial migrant of open woodland, grassland, and scrub across mainland Australia and migrating to New Guinea and Indonesia in winter.
보전 상태
Puerto Rican Nightjar
Spotted Nightjar
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 …
Spotted Nightjar
Cryptically mottled grey-brown, rufous, and black with intricate vermiculations; distinctive large white spots on wing coverts; white throat patch; no white in wings or tail. Sexes similar with slight pattern …
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.
Spotted Nightjar
호주 개방 삼림, 스피니펙스 초원, 반건조 덤불에 서식하는 중형 쏙독새(~103g). 눈점박이야행소쏙독새라고도 불린다. 관심필요종.