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Side-by-Side Comparison

属性	Dark Hawk-Cuckoo	Red-billed Ground-cuckoo
学名	Hierococcyx bocki	Neomorphus pucheranii
目	Cuculiformes	Cuculiformes
科	Cuculidae	Cuculidae
保全状況	Least Concern	Least Concern
体長	—	—
翼開長	35.9 cm (14.1 in)	33.7 cm (13.3 in)
体重	137.0 g (4.83 oz)	330.0 g (11.64 oz)
食性	--	--
一腹卵数	--	2
Population Trend	—	—

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Habitat Comparison

共通生息地

🌲 Forest

Dark Hawk-Cuckoo only

None

Red-billed Ground-cuckoo only

None

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Song & Call Comparison

Dark Hawk-Cuckoo

さえずり

Loud, raucous call with harsh quality; penetrating notes carrying through dense forest in South Asia.

Red-billed Ground-cuckoo

さえずり

Loud, harsh cackling call; piercing raucous notes carrying well across tall dense tropical forest habitat.

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保全状況

Least Concern

Dark Hawk-Cuckoo

Least Concern

Red-billed Ground-cuckoo

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How to Tell Them Apart

Dark Hawk-Cuckoo

羽毛

Dark Hawk-Cuckoo: dark brown above; pale below with dense dark barring; hawk-like; long barred tail; yellow orbital ring; dark morph

Red-billed Ground-cuckoo

羽毛

Goliath Coucal: very large; dark brown above; rich rufous wings; pale buff below; long dark tail; red eye; impressive large size

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About These Birds

Dark Hawk-Cuckoo

ボックカッコウ（Hierococcyx bocki）はボルネオ・スマトラなどの東南アジアの低地・丘陵林に生息するカッコウ科（Cuculidae）の鳥（体長27〜30 cm）。成鳥は灰色の上面と縞状の下面が特徴。托卵性。独特の鳴き声で識別。

Red-billed Ground-cuckoo

Red-billed Ground-cuckoo (Neomorphus pucheranii) — 46–50 cm. Greenish-brown above; rufous-buff below; bright red decurved bill; bare blue orbital patch. Inhabits dense lowland forest of western Amazonia in Colombia, Ecuador, Peru, and Brazil. Non-parasitic; terrestrial; follows army ants for flushed prey. Insectivore. Secretive and rarely observed.

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