{# ════════════════════════════════════════════════════════════════════════ Side-by-side Comparison Table ════════════════════════════════════════════════════════════════════════ #}

Side-by-Side Comparison

Attribute	Violaceous Coucal	Dark Hawk-Cuckoo
Scientific Name	Centropus violaceus	Hierococcyx bocki
Order	Cuculiformes	Cuculiformes
Family	Cuculidae	Cuculidae
Conservation Status	Least Concern	Least Concern
Length	—	—
Wingspan	49.6 cm (19.5 in)	35.9 cm (14.1 in)
Weight	500.0 g (17.64 oz)	137.0 g (4.83 oz)
Diet	--	--
Clutch Size	3	--
Population Trend	—	—

{# ════════════════════════════════════════════════════════════════════════ Visual Size Comparison ════════════════════════════════════════════════════════════════════════ #} {# ════════════════════════════════════════════════════════════════════════ Habitat Comparison ════════════════════════════════════════════════════════════════════════ #}

Habitat Comparison

Shared Habitats

🌲 Forest

Violaceous Coucal only

None

Dark Hawk-Cuckoo only

None

{# ════════════════════════════════════════════════════════════════════════ Song & Call Comparison ════════════════════════════════════════════════════════════════════════ #}

Song & Call Comparison

Violaceous Coucal

Song

Loud, resonant call with melodic quality; rich carrying notes audible through dense Madagascar lowland forest.

Dark Hawk-Cuckoo

Song

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

{# ════════════════════════════════════════════════════════════════════════ Geographic Range & Migration ════════════════════════════════════════════════════════════════════════ #} {# ════════════════════════════════════════════════════════════════════════ Conservation Status Comparison ════════════════════════════════════════════════════════════════════════ #}

Conservation Status

Least Concern

Violaceous Coucal

Least Concern

Dark Hawk-Cuckoo

{# ════════════════════════════════════════════════════════════════════════ Identification Tips — How to Tell Them Apart ════════════════════════════════════════════════════════════════════════ #}

How to Tell Them Apart

Violaceous Coucal

Plumage

Coppery-tailed Coucal: dark brown above; rufous wings; pale below; coppery-iridescent tail; red eye; coppery tail iridescence

Dark Hawk-Cuckoo

Plumage

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

{# ════════════════════════════════════════════════════════════════════════ About Each Bird (Descriptions) ════════════════════════════════════════════════════════════════════════ #}

About These Birds

Violaceous Coucal

Violaceous Coucal (Centropus violaceus) — 45–50 cm. Entirely deep blue-violet with a glossy sheen; long graduated tail; heavy black bill. Endemic to Manus Island and Admiralty Islands, Papua New Guinea. Inhabits forest and secondary growth. Non-parasitic. Omnivore.

Dark Hawk-Cuckoo

Dark Hawk-Cuckoo (Hierococcyx bocki) — 28–31 cm. Dark grey above; pale below with darker streaking; barred tail. Restricted to montane forest of the Malay Peninsula. Brood parasite. Insectivore. Rare; poorly documented.

{# ════════════════════════════════════════════════════════════════════════ Related Comparisons ════════════════════════════════════════════════════════════════════════ #} {# ════════════════════════════════════════════════════════════════════════ More Birds in Family ════════════════════════════════════════════════════════════════════════ #}

More Birds to Explore

More from Cuculidae

African Cuckoo Cuculus gularis African Emerald Cuckoo Chrysococcyx cupreus Andaman Coucal Centropus andamanensis Ash-colored Cuckoo Coccycua cinerea All Cuculidae birds →

Explore the Nature FYI Family

🧬 SpeciesFYI

Species & Taxonomy

🦕 DinoFYI

6,000+ Dinosaurs

🐟 FishFYI

Fish & Marine Life

🌿 PlantFYI

379,000+ Plants