Black-billed Cuckoo vs Sulawesi Cuckoo
Coccyzus erythropthalmus compared with Cuculus crassirostris
Side-by-Side Comparison
| Attribute | Black-billed Cuckoo | Sulawesi Cuckoo |
|---|---|---|
| Scientific Name | Coccyzus erythropthalmus | Cuculus crassirostris |
| Order | Cuculiformes | Cuculiformes |
| Family | Cuculidae | Cuculidae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | — |
| Wingspan | 27.4 cm (10.8 in) | 41.2 cm (16.2 in) |
| Weight | 53.20000000000001 g (1.88 oz) | 85.0 g (3.00 oz) |
| Diet | -- | -- |
| Clutch Size | 2-5 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Black-billed Cuckoo
Loud, far-carrying resonant call; deep notes audible across dense forest in Asia. Vocalization pattern typical of this species in its native habitat.
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.
Conservation Status
Black-billed Cuckoo
Sulawesi Cuckoo
How to Tell Them Apart
Black-billed Cuckoo
Sulawesi Cuckoo
Sulawesi Cuckoo: dark gray-brown above; pale below; long dark tail; yellow orbital ring; Sulawesi endemic; larger than most Cuculus
About These Birds
Black-billed Cuckoo
Black-billed Cuckoo (Coccyzus erythropthalmus) — 26–31 cm. Brown above; white below; all-dark bill; narrow red orbital ring; tail with small white spots. Migratory breeder in eastern North America; winters in South America. Non-parasitic. Insectivore specialising in tent caterpillars and other hairy larvae.
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.