Slender-tailed Nightjar vs Spotted Nightjar
Caprimulgus clarus comparado con Eurostopodus argus
Side-by-Side Comparison
| Atributo | Slender-tailed Nightjar | Spotted Nightjar |
|---|---|---|
| Nombre científico | Caprimulgus clarus | Eurostopodus argus |
| Orden | Caprimulgiformes | Caprimulgiformes |
| Familia | Caprimulgidae | Caprimulgidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 29,6 cm (11.7 in) | 42,7 cm (16.8 in) |
| Peso | 43,0 g (1.52 oz) | 102,5 g (3.62 oz) |
| Dieta | Nocturnal aerial insectivore specialising in large moths and flying beetles, caught in slow erratic hunting … | Aerial insectivore; hawks large moths, beetles, and flying insects at dusk and dawn over Australian … |
| Tamaño de la puesta | 2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Slender-tailed Nightjar only
Ninguno
Spotted Nightjar only
Song & Call Comparison
Slender-tailed Nightjar
Rapid churring trill; 'trrr-trrr' at steady pace; calls from East African dry scrub at night; lighter than Long-tailed Nightjar; alarm a quiet 'chek'
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
Slender-tailed Nightjar
Found from Angola and the DRC south through Zambia and Zimbabwe to South Africa. Resident in woodland and savanna near rocky outcrops.
Spotted Nightjar
Resident and partial migrant of open woodland, grassland, and scrub across mainland Australia and migrating to New Guinea and Indonesia in winter.
Estado de conservación
Slender-tailed Nightjar
Spotted Nightjar
How to Tell Them Apart
Slender-tailed Nightjar
Pale brown upperparts with black streaks and buff-white spotting; whitish supercilium; white throat patch; underparts buff barred brown; males have elongated but narrower tail feathers than Long-tailed Nightjar.
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
Slender-tailed Nightjar
Chotacabras de Tanzania de 22–25 cm, endémico del África Oriental con distribución limitada en Tanzania y Kenia.
Spotted Nightjar
Chotacabras de Argos, 28-30 cm. Pardo y negro moteado, cola punteada, ojos grandes. Habita bosques y matorrales abiertos de Australia. Nocturno. Insectívoro. Preocupación menor.