Heinrich's Nightjar vs New Caledonian Nightjar

Eurostopodus diabolicus comparé à Eurostopodus exul

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Side-by-Side Comparison

Attribut Heinrich's Nightjar New Caledonian Nightjar
Nom scientifique Eurostopodus diabolicus Eurostopodus exul
Ordre Caprimulgiformes Caprimulgiformes
Famille Caprimulgidae Caprimulgidae
Statut de conservation Least Concern Not Evaluated
Longueur
Envergure 39,9 cm (15.7 in) 36,4 cm (14.3 in)
Poids 104,0 g (3.67 oz) 77,0 g (2.72 oz)
Régime alimentaire 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 …
Taille de la couvée 1 --
Population Trend
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Habitat Comparison

Habitats partagés

Aucun(e)

Heinrich's Nightjar only

New Caledonian Nightjar only

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Song & Call Comparison

Heinrich's Nightjar

Chant

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

New Caledonian Nightjar

Chant

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

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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.

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Statut de conservation

Least Concern

Heinrich's Nightjar

Not Evaluated

New Caledonian Nightjar

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How to Tell Them Apart

Heinrich's Nightjar

Plumage

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

Plumage

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 …

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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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