Sulawesi Cuckoo vs Rufous-vented Ground-cuckoo
Cuculus crassirostris compared with Neomorphus geoffroyi
Side-by-Side Comparison
| Attribute | Sulawesi Cuckoo | Rufous-vented Ground-cuckoo |
|---|---|---|
| Scientific Name | Cuculus crassirostris | Neomorphus geoffroyi |
| Order | Cuculiformes | Cuculiformes |
| Family | Cuculidae | Cuculidae |
| Conservation Status | Least Concern | Vulnerable |
| Length | — | — |
| Wingspan | 41.2 cm (16.2 in) | 33.0 cm (13.0 in) |
| Weight | 85.0 g (3.00 oz) | 350.2 g (12.35 oz) |
| Diet | -- | -- |
| Clutch Size | -- | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Sulawesi Cuckoo
Loud, raucous call with harsh quality; penetrating notes carrying through dense forest in Asia. Vocalization pattern typical of this species in its native habitat.
Rufous-vented Ground-cuckoo
Deep, hollow booming call; resonant bass notes carrying surprisingly far across dense tropical forest floor.
Conservation Status
Sulawesi Cuckoo
Rufous-vented Ground-cuckoo
How to Tell Them Apart
Sulawesi Cuckoo
Sulawesi Cuckoo: dark gray-brown above; pale below; long dark tail; yellow orbital ring; Sulawesi endemic; larger than most Cuculus
Rufous-vented Ground-cuckoo
About These Birds
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.
Rufous-vented Ground-cuckoo
Rufous-vented Ground-cuckoo (Neomorphus geoffroyi) — 46–50 cm. Bronzy-brown above; buff below; rufous vent; bare blue facial skin; decurved bill. Inhabits humid lowland forest from Mexico to South America. Non-parasitic; follows army ant swarms to catch flushed prey. Rare and secretive. Insectivore.