Spotted Nightjar vs Band-tailed Nighthawk
Eurostopodus argus comparado com Nyctiprogne leucopyga
Side-by-Side Comparison
| Atributo | Spotted Nightjar | Band-tailed Nighthawk |
|---|---|---|
| Nome científico | Eurostopodus argus | Nyctiprogne leucopyga |
| Ordem | Caprimulgiformes | Caprimulgiformes |
| Família | Caprimulgidae | Caprimulgidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | — |
| Envergadura | 42,7 cm (16.8 in) | 27,2 cm (10.7 in) |
| Peso | 102,5 g (3.62 oz) | 24,7 g (0.87 oz) |
| Dieta | Aerial insectivore; hawks large moths, beetles, and flying insects at dusk and dawn over Australian … | Hawks small to medium flying insects over South American rivers, lakes, and surrounding savanna at … |
| Tamanho da postura | 1 | -- |
| Population Trend | — | — |
Habitat Comparison
Habitats partilhados
Spotted Nightjar only
Band-tailed Nighthawk only
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
Band-tailed Nighthawk
Sharp, high 'chip-chip' notes; thin buzzy trills; calls over rivers at dusk; small size produces high-pitched thin vocalizations; often calls in flight
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.
Band-tailed Nighthawk
Resident and nomadic along large rivers and in open savanna in tropical South America from Venezuela south to Bolivia, Brazil, and northern Argentina.
Estado de conservação
Spotted Nightjar
Band-tailed Nighthawk
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 …
Band-tailed Nighthawk
Small; dark brown above with buff speckles; pale buff below with dark brown barring; white tail band diagnostic at species level; white throat patch in male; no white wing bar; …
About These Birds
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.
Band-tailed Nighthawk
A tiny Caprimulgidae nighthawk (~25 g) of tropical river margins and sandbar beaches in the Amazon and Orinoco basins. Blackish brown with a white rump band; very small. Roosts on bare sand and low branches near water. Feeds on insects aerially at low elevations above rivers at dusk. Least Concern.