Oriental Cuckoo vs Lesser Ground-cuckoo
Cuculus optatus compared with Morococcyx erythropygus
Side-by-Side Comparison
| Attribute | Oriental Cuckoo | Lesser Ground-cuckoo |
|---|---|---|
| Scientific Name | Cuculus optatus | Morococcyx erythropygus |
| Order | Cuculiformes | Cuculiformes |
| Family | Cuculidae | Cuculidae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | — |
| Wingspan | — | 19.8 cm (7.8 in) |
| Weight | 102.26666666666667 g (3.61 oz) | 66.6 g (2.35 oz) |
| Diet | -- | -- |
| Clutch Size | 1-2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Shared Habitats
None
Oriental Cuckoo only
Lesser Ground-cuckoo only
None
Song & Call Comparison
Oriental Cuckoo
Loud, far-carrying raucous call; harsh penetrating notes carrying through dense forest in Asia. Vocalization pattern typical of this species in its native habitat.
Lesser Ground-cuckoo
Soft, ventriloquial whistled phrase; clear pure notes given quietly and deceptively from dense tropical thicket.
Conservation Status
Oriental Cuckoo
Lesser Ground-cuckoo
How to Tell Them Apart
Oriental Cuckoo
Oriental Cuckoo: gray above; white below with rufous barring; long dark tail; yellow eye-ring; broad barring; Asian migrant species
Lesser Ground-cuckoo
Greater Roadrunner: boldly streaked brown above; white-cream below with dark streaks; long tail; shaggy crest; bare facial skin; fast runner
About These Birds
Oriental Cuckoo
Oriental Cuckoo (Cuculus optatus) — 30–33 cm. Grey above; barred white underparts; yellow orbital ring; long tail. Widespread breeder across Siberia, Russia, and northeast Asia; winters to Southeast Asia and Australia. Brood parasite targeting warblers and flycatchers. Insectivore. Long-distance migratory cuckoo.
Lesser Ground-cuckoo
Lesser Ground-cuckoo (Morococcyx erythropygus) — 28 cm. Brown above; chestnut rump; whitish underparts; bare blue orbital skin. Inhabits dry and semi-arid scrub from Mexico to Costa Rica. Non-parasitic; builds its own nest in low shrubs. Runs on the ground hunting large insects, lizards, and amphibians. Monotypic genus endemic to Mesoamerica.