Chestnut-breasted Cuckoo vs Sulawesi Cuckoo

Cacomantis castaneiventris compared with Cuculus crassirostris

Side-by-Side Comparison

Attribute Chestnut-breasted Cuckoo Sulawesi Cuckoo
Scientific Name Cacomantis castaneiventris Cuculus crassirostris
Order Cuculiformes Cuculiformes
Family Cuculidae Cuculidae
Conservation Status Least Concern Least Concern
Length — —
Wingspan 22.1 cm (8.7 in) 41.2 cm (16.2 in)
Weight 31.5 g (1.11 oz) 85.0 g (3.00 oz)
Diet -- --
Clutch Size -- --
Population Trend — —

Habitat Comparison

Shared Habitats

Chestnut-breasted Cuckoo only

Sulawesi Cuckoo only

None

Song & Call Comparison

Chestnut-breasted Cuckoo

Song

Loud, far-carrying resonant call with chestnut-breasted quality; deep hollow notes carrying through Pacific 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

Chestnut-breasted Cuckoo

Least Concern

Sulawesi Cuckoo

How to Tell Them Apart

Chestnut-breasted Cuckoo

Plumage

Chestnut-breasted Cuckoo: rich chestnut breast; gray-brown above; pale belly; long dark tail; red orbital ring; bold chestnut breast

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

Chestnut-breasted Cuckoo

Chestnut-breasted Cuckoo (Cacomantis castaneiventris) — 20–24 cm. Grey above; bright chestnut breast and belly; grey chin; yellow orbital ring. Restricted to rainforest and forest edge of Cape York Peninsula, Australia, and southern New Guinea. Brood parasite targeting gerygones. Insectivore.

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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