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Side-by-Side Comparison

属性	Western Koel	Saint Helena Cuckoo
学名	Eudynamys scolopaceus	Nannococcyx psix
目	Cuculiformes	Cuculiformes
科	Cuculidae	Cuculidae
保全状況	Least Concern	Extinct
体長	—	—
翼開長	39.3 cm (15.5 in)	—
体重	230.0 g (8.11 oz)	171.0 g (6.03 oz)
食性	--	--
一腹卵数	2-3	--
Population Trend	—	—

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Habitat Comparison

共通生息地

🌲 Forest

Western Koel only

None

Saint Helena Cuckoo only

None

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Song & Call Comparison

Western Koel

さえずり

Loud, far-carrying nasal call; distinctive penetrating notes audible through dense tropical forest. Vocalization pattern typical of this species in its native habitat.

Saint Helena Cuckoo

さえずり

Loud, far-carrying raucous call; harsh penetrating notes given from dense island forest canopy. Vocalization pattern typical of this species in its native habitat.

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保全状況

Least Concern

Western Koel

Extinct

Saint Helena Cuckoo

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How to Tell Them Apart

Western Koel

羽毛

Shining Bronze-cuckoo: brilliant iridescent golden-green above; white barred below; bronze-green head; reddish eye; small size

Saint Helena Cuckoo

羽毛

Saint Helena Cuckoo: extinct; brown above; pale below; long graduated tail; island cuckoo; known only from subfossil remains

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About These Birds

Western Koel

南アジアに広く分布するカッコウで、独特の上昇音の鳴き声が特徴。托卵行動をとる。

Saint Helena Cuckoo

Saint Helena Cuckoo (Nannococcyx psix) — ~25 cm. Extinct. Known only from subfossil remains from Saint Helena, South Atlantic. A small cuckoo inferred from bone morphology; likely became extinct following human colonisation of the island in the 16th century and the introduction of predators.

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