Sickle-winged Nightjar vs Heinrich's Nightjar
Eleothreptus anomalus 비교 대상 Eurostopodus diabolicus
Side-by-Side Comparison
| 속성 | Sickle-winged Nightjar | Heinrich's Nightjar |
|---|---|---|
| 학명 | Eleothreptus anomalus | Eurostopodus diabolicus |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Caprimulgidae | Caprimulgidae |
| 보전 상태 | Vulnerable | Least Concern |
| 체장 | — | — |
| 날개 폭 | 25.8 cm (10.2 in) | 39.9 cm (15.7 in) |
| 체중 | 43.7 g (1.54 oz) | 104.0 g (3.67 oz) |
| 식성 | Aerial insectivore; hawks moths and beetles at night over South American wet grassland and marshes. | Nocturnal aerial insectivore; catches moths and beetles in flight over Sulawesi forest; poorly known. |
| 산란 수 | 2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Sickle-winged Nightjar
Soft churring call; low-pitched, repetitive trill from grassland; males produce distinctive wing noise in display flight; vocalizations quiet compared to wing sounds
Heinrich's Nightjar
Haunting, hollow 'ku-WOO' repeated rhythmically; deep resonant quality; distinctive mournful whistle carrying through Sulawesi forest at night
Geographic Range & Migration
Sickle-winged Nightjar
Resident of open marshland, wet grassland, and savanna from Paraguay and adjacent Bolivia south to Uruguay and northeastern Argentina.
Heinrich's Nightjar
Endemic to Sulawesi, Indonesia; resident of montane forest; extremely rare and poorly known, with very few records.
보전 상태
Sickle-winged Nightjar
Heinrich's Nightjar
How to Tell Them Apart
Sickle-winged Nightjar
Male with extraordinarily elongated sickle-shaped outer primaries; dark brown with buff mottling; white throat and wing spots. Female brown with buff spots; normal wing shape; male wing shape unique among …
Heinrich's Nightjar
Rufous-brown and dark brown mottled with buff vermiculations; large pale buff throat patch; pale buff supercilium; no white wing markings; tail darkly barred brown and buff. Poorly known; Sulawesi endemic.
About These Birds
Sickle-winged Nightjar
작은 쏙독새과(~44g) 새로 남아메리카 남부의 습한 팜파 초원과 습지에 서식. 주로 야행성이며 날아다니는 곤충을 잡아먹는다. 취약종.
Heinrich's Nightjar
술라웨시 고유의 숲과 숲 가장자리에 서식하는 중형 쏙독새(~104g). 악마야행소쏙독새라고도 불린다. 관심필요종.