Chattering Yellowbill vs Sulawesi Cuckoo

Ceuthmochares aereus compared with Cuculus crassirostris

Side-by-Side Comparison

Attribute Chattering Yellowbill Sulawesi Cuckoo
Scientific Name Ceuthmochares aereus Cuculus crassirostris
Order Cuculiformes Cuculiformes
Family Cuculidae Cuculidae
Conservation Status Least Concern Least Concern
Length
Wingspan 23.4 cm (9.2 in) 41.2 cm (16.2 in)
Weight 65.0 g (2.29 oz) 85.0 g (3.00 oz)
Diet -- --
Clutch Size 2-3 --
Population Trend

Habitat Comparison

Shared Habitats

Chattering Yellowbill only

None

Sulawesi Cuckoo only

None

Song & Call Comparison

Chattering Yellowbill

Song

Loud, resonant call with musical quality; rich clear notes audible through dense humid tropical forest.

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

Chattering Yellowbill

Least Concern

Sulawesi Cuckoo

How to Tell Them Apart

Chattering Yellowbill

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

Chattering Yellowbill

Chattering Yellowbill (Ceuthmochares aereus) — 30–35 cm. Slender; grey above; paler below; vivid yellow bill; long graduated tail. Inhabits dense forest undergrowth across West and Central Africa. Non-parasitic; builds its own nest. Insectivore; gleans caterpillars from leaves. Identified by its loud chattering 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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