Vogelkop Owlet-nightjar vs New Caledonian Owlet-nightjar

Aegotheles affinis compared with Aegotheles savesi

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Side-by-Side Comparison

Attribute Vogelkop Owlet-nightjar New Caledonian Owlet-nightjar
Scientific Name Aegotheles affinis Aegotheles savesi
Order Caprimulgiformes Caprimulgiformes
Family Aegothelidae Aegothelidae
Conservation Status Near Threatened Critically Endangered
Length
Wingspan 26.7 cm (10.5 in) 32.6 cm (12.8 in)
Weight 52.3 g (1.84 oz) 55.5 g (1.96 oz)
Diet Nocturnal insectivore feeding on beetles, moths, and ants; hunts with short aerial sallies and ground-gleaning. Night hunter of beetles, large moths, and termites; combines aerial sallying with gleaning on tree …
Clutch Size -- --
Population Trend
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Habitat Comparison

Shared Habitats

Vogelkop Owlet-nightjar only

None

New Caledonian Owlet-nightjar only

None

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Song & Call Comparison

Vogelkop Owlet-nightjar

Song

Soft churring trill; quiet 'trrr' from Vogelkop Peninsula forest; calls at night; poorly documented; similar to Barred Owlet-nightjar but softer; alarm a chattered series

New Caledonian Owlet-nightjar

Song

Extremely poorly known; presumed churring trill; critically endangered with fewer than 50 individuals; no confirmed recordings from New Caledonian forest

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Geographic Range & Migration

Vogelkop Owlet-nightjar

Endemic to the Vogelkop Peninsula of western New Guinea. Found in lowland and hill forest. Range and habits poorly understood from few specimens.

New Caledonian Owlet-nightjar

Possibly extinct; known from one specimen from New Caledonia collected in 1880. Critically Endangered; may survive in dense humid forest.

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Conservation Status

Near Threatened

Vogelkop Owlet-nightjar

Critically Endangered

New Caledonian Owlet-nightjar

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How to Tell Them Apart

Vogelkop Owlet-nightjar

Plumage

Dark grey-brown upperparts with darker barring; underparts pale buff barred dark brown; facial disc with dark border; restricted to Vogelkop Peninsula, New Guinea; slightly darker and greyer than allied Mountain …

New Caledonian Owlet-nightjar

Plumage

Dark brown upperparts with buff barring; underparts pale buff barred dark brown; facial disc with dark surround; large for genus; critically endangered New Caledonian endemic known from very few records …

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About These Birds

Vogelkop Owlet-nightjar

A medium-sized owlet-nightjar (22-24 cm) found in montane forests of the Vogelkop Peninsula (Bird's Head) of western New Guinea. Dark brown barred plumage. Nocturnal insectivore. Recently recognized as a distinct species, separated from Barred Owlet-nightjar. Limited ecological data.

New Caledonian Owlet-nightjar

An extremely rare and possibly extinct owlet-nightjar (28 cm) endemic to New Caledonia. Known from a single specimen collected in 1880 and one probable sighting in 1998. Classified as Critically Endangered. Believed to inhabit humid montane forest. Ecology virtually unknown.

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