Heinrich's Nightjar vs New Caledonian Nightjar

Eurostopodus diabolicus comparado con Eurostopodus exul

Side-by-Side Comparison

Atributo Heinrich's Nightjar New Caledonian Nightjar
Nombre científico Eurostopodus diabolicus Eurostopodus exul
Orden Caprimulgiformes Caprimulgiformes
Familia Caprimulgidae Caprimulgidae
Estado de conservación Least Concern Not Evaluated
Longitud — —
Envergadura 39,9 cm (15.7 in) 36,4 cm (14.3 in)
Peso 104,0 g (3.67 oz) 77,0 g (2.72 oz)
Dieta Nocturnal aerial insectivore; catches moths and beetles in flight over Sulawesi forest; poorly known. Feeds on flying insects caught in aerial pursuit at night; extinct in New Caledonia, diet …
Tamaño de la puesta 1 --
Population Trend — —

Habitat Comparison

Hábitats compartidos

Ninguno

Heinrich's Nightjar only

New Caledonian Nightjar only

Song & Call Comparison

Heinrich's Nightjar

Canto

Haunting, hollow 'ku-WOO' repeated rhythmically; deep resonant quality; distinctive mournful whistle carrying through Sulawesi forest at night

New Caledonian Nightjar

Canto

Poorly documented calls; presumed churring nocturnal song similar to congeners; deep resonant trilling at low pitch; vocalizations essentially unknown

Geographic Range & Migration

Heinrich's Nightjar

Endemic to Sulawesi, Indonesia; resident of montane forest; extremely rare and poorly known, with very few records.

New Caledonian Nightjar

Formerly endemic to New Caledonia; known from historical records only; possibly extinct, last confirmed late 19th century.

Estado de conservación

Least Concern

Heinrich's Nightjar

Not Evaluated

New Caledonian Nightjar

How to Tell Them Apart

Heinrich's Nightjar

Plumaje

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.

New Caledonian Nightjar

Plumaje

Brown and grey mottled with buff and dark vermiculations; whitish-buff throat patch; fine pale shaft streaks on crown; no white in wings or tail; known from very few specimens; New …

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.

New Caledonian Nightjar

A small, poorly known Caprimulgidae nightjar (~77 g) endemic to New Caledonia. Known from very few specimens; status unclear and possibly extinct. Cryptic brown-and-buff plumage. Presumed to inhabit open scrub or forest edge. Crepuscular insectivore. Not evaluated by IUCN due to scarcity of data.

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