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Song & Call Comparison
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Song & Call Comparison
Dark Hawk-Cuckoo
Song
Loud, raucous call with harsh quality; penetrating notes carrying through dense forest in South Asia.
Saint Helena Cuckoo
Song
Loud, far-carrying raucous call; harsh penetrating notes given from dense island forest canopy. Vocalization pattern typical of this species in its native habitat.
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Geographic Range & Migration
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Conservation Status Comparison
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Conservation Status
Least Concern
Dark Hawk-Cuckoo
Extinct
Saint Helena Cuckoo
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Identification Tips — How to Tell Them Apart
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How to Tell Them Apart
Dark Hawk-Cuckoo
Plumage
Dark Hawk-Cuckoo: dark brown above; pale below with dense dark barring; hawk-like; long barred tail; yellow orbital ring; dark morph
Saint Helena Cuckoo
Plumage
Saint Helena Cuckoo: extinct; brown above; pale below; long graduated tail; island cuckoo; known only from subfossil remains
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About Each Bird (Descriptions)
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Dark Hawk-Cuckoo (Hierococcyx bocki) — 28–31 cm. Dark grey above; pale below with darker streaking; barred tail. Restricted to montane forest of the Malay Peninsula. Brood parasite. Insectivore. Rare; poorly documented.
Saint Helena Cuckoo (Nannococcyx psix) — ~25 cm. Extinct. Known only from subfossil remains from Saint Helena, South Atlantic. A small cuckoo inferred from bone morphology; likely became extinct following human colonisation of the island in the 16th century and the introduction of predators.
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Related Comparisons
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More Birds in Family
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