Western Koel vs Common Squirrel-cuckoo

Eudynamys scolopaceus compared with Piaya cayana

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Side-by-Side Comparison

Attribute Western Koel Common Squirrel-cuckoo
Scientific Name Eudynamys scolopaceus Piaya cayana
Order Cuculiformes Cuculiformes
Family Cuculidae Cuculidae
Conservation Status Least Concern Least Concern
Length
Wingspan 39.3 cm (15.5 in) 29.1 cm (11.5 in)
Weight 230.0 g (8.11 oz) 103.85 g (3.66 oz)
Diet -- --
Clutch Size 2-3 2
Population Trend
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Habitat Comparison

Shared Habitats

Western Koel only

None

Common Squirrel-cuckoo only

None

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Song & Call Comparison

Western Koel

Song

Loud, far-carrying nasal call; distinctive penetrating notes audible through dense tropical forest. Vocalization pattern typical of this species in its native habitat.

Common Squirrel-cuckoo

Song

Harsh, far-carrying call with raucous quality; loud rough notes carrying through dense tropical forest.

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Conservation Status

Least Concern

Western Koel

Least Concern

Common Squirrel-cuckoo

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How to Tell Them Apart

Western Koel

Plumage

Shining Bronze-cuckoo: brilliant iridescent golden-green above; white barred below; bronze-green head; reddish eye; small size

Common Squirrel-cuckoo

Plumage

Great Spotted Cuckoo: gray above with white spots; pale below; long white-spotted dark tail; long pale crest; European migrant

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About These Birds

Western Koel

Western Koel (Eudynamys scolopaceus) — 39–46 cm. Male glossy black; female brown with white spots and barred underparts; red eye. Widespread from South Asia through mainland Southeast Asia. Brood parasite targeting crows and mynas. Frugivore and insectivore. Its rising wailing call heralds the Indian summer.

Common Squirrel-cuckoo

Common Squirrel-cuckoo (Piaya cayana) — 40–50 cm. Brilliant rufous-chestnut above and on breast; grey belly; yellow-green bill; very long tail with bold black-and-white tips. Widespread in forest and forest edge from Mexico to Bolivia and Argentina. Non-parasitic. Insectivore; agile forager in tree canopy catching large insects and caterpillars.

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