Lesser Ground-cuckoo vs Long-tailed Koel

Morococcyx erythropygus compared with Urodynamis taitensis

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Side-by-Side Comparison

Attribute Lesser Ground-cuckoo Long-tailed Koel
Scientific Name Morococcyx erythropygus Urodynamis taitensis
Order Cuculiformes Cuculiformes
Family Cuculidae Cuculidae
Conservation Status Least Concern Least Concern
Length
Wingspan 19.8 cm (7.8 in) 34.4 cm (13.5 in)
Weight 66.6 g (2.35 oz) 113.5 g (4.00 oz)
Diet -- --
Clutch Size 2 --
Population Trend
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Habitat Comparison

Shared Habitats

None

Lesser Ground-cuckoo only

None

Long-tailed Koel only

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Song & Call Comparison

Lesser Ground-cuckoo

Song

Soft, ventriloquial whistled phrase; clear pure notes given quietly and deceptively from dense tropical thicket.

Long-tailed Koel

Song

Deep, hollow resonant call; powerful low notes carrying through dense tropical forest in Southeast Asia.

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Conservation Status

Least Concern

Lesser Ground-cuckoo

Least Concern

Long-tailed Koel

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How to Tell Them Apart

Lesser Ground-cuckoo

Plumage

Greater Roadrunner: boldly streaked brown above; white-cream below with dark streaks; long tail; shaggy crest; bare facial skin; fast runner

Long-tailed Koel

Plumage

White-eared Bronze-cuckoo: white ear patch; bronze-green above; barred white below; distinctive white ear spot; small cuckoo

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About These Birds

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.

Long-tailed Koel

Long-tailed Koel (Urodynamis taitensis) — 40–43 cm; tail up to 22 cm. Slender; brown above with white spots; pale underparts with brown streaking; very long pointed tail. Migrates from New Zealand and Pacific islands to Melanesia and Micronesia. Brood parasite targeting reed-warblers. Frugivore and insectivore.

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