Spotted Nightjar vs Spot-tailed Nightjar
Eurostopodus argus comparado con Hydropsalis maculicaudus
Side-by-Side Comparison
| Atributo | Spotted Nightjar | Spot-tailed Nightjar |
|---|---|---|
| Nombre científico | Eurostopodus argus | Hydropsalis maculicaudus |
| Orden | Caprimulgiformes | Caprimulgiformes |
| Familia | Caprimulgidae | Caprimulgidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 42,7 cm (16.8 in) | 25,8 cm (10.2 in) |
| Peso | 102,5 g (3.62 oz) | 32,125 g (1.13 oz) |
| Dieta | Aerial insectivore; hawks large moths, beetles, and flying insects at dusk and dawn over Australian … | Catches flying insects in nocturnal aerial pursuit over Central and South American grassland. |
| Tamaño de la puesta | 1 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Spotted Nightjar only
Spot-tailed Nightjar only
Ninguno
Song & Call Comparison
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
Spot-tailed Nightjar
Soft, rhythmic churring; gentle 'trrr-trrr' from humid grassland; calls low from ground; quieter than most nightjars; alarm a subtle 'chek'; small and inconspicuous
Geographic Range & Migration
Spotted Nightjar
Resident and partial migrant of open woodland, grassland, and scrub across mainland Australia and migrating to New Guinea and Indonesia in winter.
Spot-tailed Nightjar
Resident of open cerrado, scrub, and forest edge in interior South America from Venezuela and the Guianas south to Bolivia, Brazil, and Paraguay.
Estado de conservación
Spotted Nightjar
Spot-tailed Nightjar
How to Tell Them Apart
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 …
Spot-tailed Nightjar
Small; brown and buff mottled above; pale buff below with dark barring; white throat in male; distinctive white spots on rounded tail distinguishing it from similar Hydropsalis; buff throat in …
About These Birds
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.
Spot-tailed Nightjar
El añapero de cola moteada es un pequeño chotacabras que habita en sabanas y pastizales desde México hasta Argentina, activo al amanecer y al anochecer.