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Side-by-Side Comparison

属性	Olive Long-tailed Cuckoo	Western Koel
学名	Cercococcyx olivinus	Eudynamys scolopaceus
目	Cuculiformes	Cuculiformes
科	Cuculidae	Cuculidae
保护状况	Least Concern	Least Concern
体长	—	—
翼展	27.8 cm (10.9 in)	39.3 cm (15.5 in)
体重	65.83333333333333 g (2.32 oz)	230.0 g (8.11 oz)
食性	--	--
产卵数	--	2-3
Population Trend	—	—

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Habitat Comparison

共同栖息地

🌲 Forest

Olive Long-tailed Cuckoo only

无

Western Koel only

无

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Song & Call Comparison

Olive Long-tailed Cuckoo

鸣唱

Loud, far-carrying resonant call; deep hollow notes given repeatedly from dense forest canopy. Vocalization pattern typical of this species in its native habitat.

Western Koel

鸣唱

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

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保护状况

Least Concern

Olive Long-tailed Cuckoo

Least Concern

Western Koel

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How to Tell Them Apart

Olive Long-tailed Cuckoo

羽毛

Olive Long-tailed Cuckoo: olive-brown above; pale buff below; very long graduated dark tail; red eye; olive coloration diagnostic

Western Koel

羽毛

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

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About These Birds

Olive Long-tailed Cuckoo

橄榄长尾杜鹃 (Cercococcyx olivinus)，体长约34厘米。上体橄榄褐色，下体白色具棕色横纹，尾长。眼黄色，嘴细而弯曲。分布于非洲西部的热带雨林，包括几内亚湾沿岸各国。以昆虫幼虫为主食。

Western Koel

西方噪鹃，体长39-46厘米。雄鸟全身黑亮，眼红色。分布于南亚至东南亚大陆。巢寄生性。

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