Diederik Cuckoo vs Sulawesi Cuckoo

Chrysococcyx caprius compared with Cuculus crassirostris

Side-by-Side Comparison

Attribute Diederik Cuckoo Sulawesi Cuckoo
Scientific Name Chrysococcyx caprius Cuculus crassirostris
Order Cuculiformes Cuculiformes
Family Cuculidae Cuculidae
Conservation Status Least Concern Least Concern
Length
Wingspan 22.7 cm (8.9 in) 41.2 cm (16.2 in)
Weight 32.44 g (1.14 oz) 85.0 g (3.00 oz)
Diet -- --
Clutch Size -- --
Population Trend

Habitat Comparison

Shared Habitats

None

Diederik Cuckoo only

Sulawesi Cuckoo only

Song & Call Comparison

Diederik Cuckoo

Song

Loud, far-carrying call with resonant quality; deep hollow notes audible far through dense forest. Vocalization pattern typical of this species in its native habitat.

Sulawesi Cuckoo

Song

Loud, raucous call with harsh quality; penetrating notes carrying through dense forest in Asia. Vocalization pattern typical of this species in its native habitat.

Conservation Status

Least Concern

Diederik Cuckoo

Least Concern

Sulawesi Cuckoo

How to Tell Them Apart

Diederik Cuckoo

Sulawesi Cuckoo

Plumage

Sulawesi Cuckoo: dark gray-brown above; pale below; long dark tail; yellow orbital ring; Sulawesi endemic; larger than most Cuculus

About These Birds

Diederik Cuckoo

Diederik Cuckoo (Chrysococcyx caprius) — 18–20 cm. Male: iridescent green with white spots; white eye-stripe; red eye; white below with green barring. Female: bronze-green with copper streaks. Widespread in sub-Saharan Africa in woodland and savanna. Brood parasite targeting weavers. Insectivore. Named for its 'dee-dee-dee-diederik' call.

Sulawesi Cuckoo

Sulawesi Cuckoo (Cuculus crassirostris) — 30–34 cm. Dark grey above; pale below with bold brown-grey barring; heavier bill than most Cuculus. Endemic to Sulawesi in montane forest. Brood parasite. Insectivore. Poorly known.

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