Chirruping Nightjar vs Spotted Nightjar
Caprimulgus griseatus verglichen mit Eurostopodus argus
Side-by-Side Comparison
| Merkmal | Chirruping Nightjar | Spotted Nightjar |
|---|---|---|
| Wissenschaftlicher Name | Caprimulgus griseatus | Eurostopodus argus |
| Ordnung | Caprimulgiformes | Caprimulgiformes |
| Familie | Caprimulgidae | Caprimulgidae |
| Erhaltungsstatus | Not Evaluated | Least Concern |
| Länge | — | — |
| Flügelspannweite | — | 42,7 cm (16.8 in) |
| Gewicht | — | 102,5 g (3.62 oz) |
| Ernährung | -- | Aerial insectivore; hawks large moths, beetles, and flying insects at dusk and dawn over Australian … |
| Gelegegröße | -- | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Chirruping Nightjar
Distinctive chirruping trill; rapid high-pitched 'chi-chi-chi-rrr'; sharper and more staccato than typical Caprimulgus; calls at dusk from open habitats
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
Chirruping Nightjar
Spotted Nightjar
Resident and partial migrant of open woodland, grassland, and scrub across mainland Australia and migrating to New Guinea and Indonesia in winter.
Erhaltungsstatus
Chirruping Nightjar
Spotted Nightjar
How to Tell Them Apart
Chirruping Nightjar
Grey-brown upperparts with blackish streaks and pale buff vermiculations; buff-white chin and throat; underparts barred pale buff and dark brown; recently split from Savanna Nightjar, differing in subtle plumage and …
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
Chirruping Nightjar
A small nightjar (20-22 cm) of dry scrub and semi-arid savanna in Colombia, Venezuela, and Guyana. Pale grey-brown plumage with fine streaking. Named for its chirruping, insect-like call delivered at dusk. Nocturnal insectivore, feeding on moths and beetles.
Spotted Nightjar
A medium Caprimulgidae nightjar (~103 g) of open woodland, spinifex grassland, and rocky ridges across mainland Australia. Intricately spotted and barred brown, grey, and buff. Cryptic by day on the ground among leaf litter. Crepuscular and nocturnal; feeds on flying insects caught in aerial pursuit. Least Concern.