Rufous Nightjar vs Spotted Nightjar
Antrostomus rufus comparado con Eurostopodus argus
Side-by-Side Comparison
| Atributo | Rufous Nightjar | Spotted Nightjar |
|---|---|---|
| Nombre científico | Antrostomus rufus | Eurostopodus argus |
| Orden | Caprimulgiformes | Caprimulgiformes |
| Familia | Caprimulgidae | Caprimulgidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 33,8 cm (13.3 in) | 42,7 cm (16.8 in) |
| Peso | 87,0 g (3.07 oz) | 102,5 g (3.62 oz) |
| Dieta | Nocturnal aerial insectivore; catches large moths and beetles in low aerial sallies over South American … | Aerial insectivore; hawks large moths, beetles, and flying insects at dusk and dawn over Australian … |
| Tamaño de la puesta | 1-2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Rufous Nightjar only
Ninguno
Spotted Nightjar only
Song & Call Comparison
Rufous Nightjar
Loud 'chuck-BURR's' or rapid rolling phrase; rich, melodic whistle; carries across South American forest; distinctive chucking intro note before main phrase
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
Rufous Nightjar
Resident of open woodland and scrub in tropical South America from Colombia, Venezuela, and Trinidad south through Brazil to Bolivia and Argentina.
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
Rufous Nightjar
Spotted Nightjar
How to Tell Them Apart
Rufous Nightjar
Strongly rufous-brown overall with dark brown vermiculations; buff throat patch; white inner tail webs on outer tail feathers in male; no white gorget; uniformly rufous tones diagnostic among South American …
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
Rufous Nightjar
A medium Caprimulgidae nightjar (~87 g) of tropical dry forest, scrubby woodland, and clearings in Central and South America. Rich rufous-brown plumage makes it one of the more distinctively coloured nightjars. Calls with a rolling 'chuck-will's-widow'-like phrase in Spanish-speaking regions. Feeds on large insects. Least Concern.
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.