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

Side-by-Side Comparison

Attribute	Ivory-billed Coucal	Rufous-winged Ground-cuckoo
Scientific Name	Centropus menbeki	Neomorphus rufipennis
Order	Cuculiformes	Cuculiformes
Family	Cuculidae	Cuculidae
Conservation Status	Least Concern	Least Concern
Length	—	—
Wingspan	43.6 cm (17.2 in)	34.1 cm (13.4 in)
Weight	461.25 g (16.27 oz)	381.25 g (13.45 oz)
Diet	--	--
Clutch Size	--	--
Population Trend	—	—

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

Habitat Comparison

Shared Habitats

🌲 Forest

Ivory-billed Coucal only

None

Rufous-winged Ground-cuckoo only

None

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

Song & Call Comparison

Ivory-billed Coucal

Song

Harsh, far-carrying call with deep quality; resonant rough notes carrying across African lowland forest.

Rufous-winged Ground-cuckoo

Song

Deep, hollow resonant call; powerful low-frequency sound carrying across dense lowland tropical forest floor.

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

Conservation Status

Least Concern

Ivory-billed Coucal

Least Concern

Rufous-winged Ground-cuckoo

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

How to Tell Them Apart

Ivory-billed Coucal

Plumage

Buff-headed Coucal: distinctive buff-white head; dark brown back; rufous wings; pale underparts; long dark tail; red eye; head pattern

Rufous-winged Ground-cuckoo

Plumage

Pheasant Coucal: dark glossy black head and body; rufous-brown wings; strongly barred dark tail; reddish eye; terrestrial habits

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

About These Birds

Ivory-billed Coucal

Ivory-billed Coucal (Centropus menbeki) — 60–68 cm. Very large; blackish-brown overall with a pale ivory-coloured heavy bill; long graduated tail. Found in forest and tall secondary growth of New Guinea and Aru Islands. Non-parasitic; builds an enclosed grass nest. Omnivorous; takes large invertebrates, lizards, frogs, and small mammals.

Rufous-winged Ground-cuckoo

Rufous-winged Ground-cuckoo (Neomorphus rufipennis) — 46–50 cm. Bronze-green above; rufous wing panels; pale buff below. Found in humid forest of Venezuela, Guyana, and northern Brazil. Non-parasitic; follows army ants. Insectivore and small vertebrate predator. Rarely encountered; Near Threatened.

{# ════════════════════════════════════════════════════════════════════════ 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