Heinrich's Nightjar vs Scissor-tailed Nightjar
Eurostopodus diabolicus comparado com Hydropsalis torquata
Side-by-Side Comparison
| Atributo | Heinrich's Nightjar | Scissor-tailed Nightjar |
|---|---|---|
| Nome científico | Eurostopodus diabolicus | Hydropsalis torquata |
| Ordem | Caprimulgiformes | Caprimulgiformes |
| Família | Caprimulgidae | Caprimulgidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | — |
| Envergadura | 39,9 cm (15.7 in) | 36,8 cm (14.5 in) |
| Peso | 104,0 g (3.67 oz) | 54,625 g (1.93 oz) |
| Dieta | Nocturnal aerial insectivore; catches moths and beetles in flight over Sulawesi forest; poorly known. | Catches moths, beetles, and flying insects in aerial sallies at night over South American savanna. |
| Tamanho da postura | 1 | 2 |
| Population Trend | — | — |
Habitat Comparison
Habitats partilhados
Nenhum
Heinrich's Nightjar only
Scissor-tailed Nightjar only
Song & Call Comparison
Heinrich's Nightjar
Haunting, hollow 'ku-WOO' repeated rhythmically; deep resonant quality; distinctive mournful whistle carrying through Sulawesi forest at night
Scissor-tailed Nightjar
Loud, clear churring 'quurrr'; repetitive at moderate pitch; calls from open cerrado at dusk; males call persistently from prominent perches; alarm a sharp 'chek'
Geographic Range & Migration
Heinrich's Nightjar
Endemic to Sulawesi, Indonesia; resident of montane forest; extremely rare and poorly known, with very few records.
Scissor-tailed Nightjar
Resident of open savanna, cerrado, and scrub from Colombia and Venezuela south through Brazil to Bolivia and northern Argentina.
Estado de conservação
Heinrich's Nightjar
Scissor-tailed Nightjar
How to Tell Them Apart
Heinrich's Nightjar
Rufous-brown and dark brown mottled with buff vermiculations; large pale buff throat patch; pale buff supercilium; no white wing markings; tail darkly barred brown and buff. Poorly known; Sulawesi endemic.
Scissor-tailed Nightjar
Male with enormously elongated outer tail feathers to 25 cm forming scissors in flight; brown and buff mottled body; white throat; white wing spots. Female brown mottled with normal tail …
About These Birds
Heinrich's Nightjar
A medium Caprimulgidae nightjar (~104 g) endemic to the forest and forest-edge habitats of Sulawesi, Indonesia. Cryptically patterned brown-and-buff. Nocturnal insectivore; catches moths and beetles in aerial sallies. Little studied and rarely encountered in the field. Least Concern within its Sulawesi range.
Scissor-tailed Nightjar
O bacurau-tesoura é um bacurau noturno sul-americano notável pela cauda extremamente longa e bifurcada dos machos, encontrado em campos abertos e cerrado.