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Side-by-Side Comparison

属性	Palau Nightjar	Papuan Nightjar
学名	Caprimulgus phalaena	Eurostopodus papuensis
目	Caprimulgiformes	Caprimulgiformes
科	Caprimulgidae	Caprimulgidae
保全状況	Least Concern	Least Concern
体長	—	—
翼開長	32.3 cm (12.7 in)	37.9 cm (14.9 in)
体重	91.5 g (3.23 oz)	80.5 g (2.84 oz)
食性	Catches flying insects in nocturnal aerial sallies over Palau island forest and scrub.	Hawks large flying insects, especially moths, at night over Papuan forest and savanna.
一腹卵数	--	1
Population Trend	—	—

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Habitat Comparison

共通生息地

🌲 Forest

Palau Nightjar only

None

Papuan Nightjar only

None

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Song & Call Comparison

Palau Nightjar

さえずり

Churring call from Palau forest; repetitive hollow trill; endemic island species with poorly documented vocalizations; calls at night from dense vegetation

Papuan Nightjar

さえずり

Churring, repetitive nocturnal call; soft bubbling trill; melodic series of hollow notes; calls from low perch or ground in New Guinea lowland forest

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Geographic Range & Migration

Palau Nightjar

Endemic to Palau (Micronesia, western Pacific Ocean); resident of forest and open woodland on the main Palauan islands.

Papuan Nightjar

Resident of savanna woodland, grass, and scrub in lowland New Guinea (Papua, Indonesia and Papua New Guinea).

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保全状況

Least Concern

Palau Nightjar

Least Concern

Papuan Nightjar

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How to Tell Them Apart

Palau Nightjar

羽毛

Brown and rufous mottled above with dark vermiculations; pale buff throat patch; small pale wing spots; tail barred brown and buff without bold white markings; Palau endemic; relatively large and …

Papuan Nightjar

羽毛

Dark grey-brown finely vermiculated with buff and black; pale buff and rufous throat patch; pale supercilium; no white wing patches; tail barred brown and buff; cryptically patterned bark-mimicking plumage.

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About These Birds

Palau Nightjar

体重約92gのパラオ諸島西太平洋固有のヨタカ。褐色とバフ色の隠蔽色を持つ。

Papuan Nightjar

ニューギニア南部の低地に生息するヨタカで、体重81g。

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More Birds to Explore

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