Dusky Long-tailed Cuckoo vs African Emerald Cuckoo

Cercococcyx mechowi compared with Chrysococcyx cupreus

Side-by-Side Comparison

Attribute Dusky Long-tailed Cuckoo African Emerald Cuckoo
Scientific Name Cercococcyx mechowi Chrysococcyx cupreus
Order Cuculiformes Cuculiformes
Family Cuculidae Cuculidae
Conservation Status Least Concern Least Concern
Length
Wingspan 26.1 cm (10.3 in) 21.1 cm (8.3 in)
Weight 57.0 g (2.01 oz) 38.0 g (1.34 oz)
Diet -- --
Clutch Size -- --
Population Trend

Habitat Comparison

Shared Habitats

None

Dusky Long-tailed Cuckoo only

African Emerald Cuckoo only

None

Song & Call Comparison

Dusky Long-tailed Cuckoo

Song

Loud, raucous call with hollow resonant quality; distinctive far-carrying notes through dense forest.

African Emerald Cuckoo

Song

Deep, hollow resonant booming call; powerful low notes carrying far through dense tropical forest. Vocalization pattern typical of this species in its native habitat.

Conservation Status

Least Concern

Dusky Long-tailed Cuckoo

Least Concern

African Emerald Cuckoo

How to Tell Them Apart

Dusky Long-tailed Cuckoo

Plumage

Dusky Long-tailed Cuckoo: dark dusky brown above; pale buff below; very long graduated dark tail; red eye; forest canopy specialist

African Emerald Cuckoo

About These Birds

Dusky Long-tailed Cuckoo

Dusky Long-tailed Cuckoo (Cercococcyx mechowi) — 28–32 cm. Dark brown above; pale buff below with fine dark barring; very long graduated tail. Inhabits dense forest understorey across Central Africa. Brood parasite targeting ant-thrushes and other forest passerines. Insectivore. Secretive; more often heard than seen.

African Emerald Cuckoo

African Emerald Cuckoo (Chrysococcyx cupreus) — 20–22 cm. Male: dazzling emerald green above and on breast; yellow belly; red bill. Female: bronze-green above; rufous-barred below. Inhabits primary forest and dense secondary growth across West and Central Africa. Brood parasite targeting sunbirds and other small passerines. Insectivore.

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