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Side-by-Side Comparison

属性	Greater Ani	Western Koel
学名	Crotophaga major	Eudynamys scolopaceus
目	Cuculiformes	Cuculiformes
科	Cuculidae	Cuculidae
保全状況	Least Concern	Least Concern
体長	—	—
翼開長	38.7 cm (15.2 in)	39.3 cm (15.5 in)
体重	184.625 g (6.51 oz)	230.0 g (8.11 oz)
食性	Insectivore of tropical South American marshes; eats hairy caterpillars, large beetles, and small lizards. Also …	--
一腹卵数	3-7	2-3
Population Trend	—	—

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Habitat Comparison

共通生息地

🌲 Forest

Greater Ani only

🌿 Wetland 🏖️ Coastal

Western Koel only

None

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Song & Call Comparison

Greater Ani

さえずり

Soft, wheezy call with plaintive quality; delicate notes given quietly from dense grassland cover at dawn.

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.

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Geographic Range & Migration

Greater Ani

Found in tropical forests, mangroves, and marshes from Mexico to Argentina. Resident in lowland wetland habitats.

Western Koel

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保全状況

Least Concern

Greater Ani

Least Concern

Western Koel

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How to Tell Them Apart

Greater Ani

羽毛

Black-eared Bronze-cuckoo: dark ear patch; bronze-green above; barred white below; red eye; distinctive dark ear patches; small

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

Greater Ani

グレーターアーニー（Crotophaga major）— 中南米の河川・湿地帯に生息する最大のアーニー。青い眼と黒い羽色が特徴。共同で巣を作る。

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。

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