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  1. Species
  2. ›
  3. Cuculidae
  4. ›
  5. Cuculus
  6. ›
  7. Oriental Cuckoo
Oriental Cuckoo
Photo · Daderot

BirdUp · Species

Oriental Cuckoo

Cuculus optatusGould, 1845

Updated 21 March 2026

Conservation status: Least ConcernOrigin: Native
Order
CUCULIFORMES
Family
Cuculidae
Genus
Cuculus

At a glance

The Oriental Cuckoo is a medium-sized bird, about 30–34 cm long, listed as Least Concern and native to Australia. It can be seen year-round.

Size
30–34 cm
Conservation status
Least Concern
Origin
Native
Best seen
Year-round
Commonness
Very common
  • Identification
  • Where
  • When
  • Behaviour

01 · Identification

How to tell it apart

What does an Oriental Cuckoo look like?

The Oriental Cuckoo is a medium-sized bird, about 30–34 cm long and weighing 73–156 g.

The Oriental cuckoo or Horsfield's cuckoo is a bird belonging to the genus Cuculus in the cuckoo family Cuculidae. It was formerly classified as a subspecies of the Himalayan cuckoo, with the name 'Oriental cuckoo' used for the combined species. Differences in voice and size suggest that it should be treated as a separate species. The binomial name Cuculus horsfieldi has often been used instead of Cuculus optatus, but is now usually considered to be a junior synonym.

Description · wikipedia · CC BY-SA 4.0

Field specs

Length
30–34 cm
Weight
73–156 g
Wingspan
51 cm

Measurements · avonet · CC BY 4.0

03 · When

When to look

When can you see an Oriental Cuckoo?

The Oriental Cuckoo is present across its Australian range year-round, so it can be seen in any month.

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec

05 · Behaviour

Habits and haunts

What does an Oriental Cuckoo eat?

The Oriental Cuckoo feeds on primarily insectivorous and specializing in lepidopteran larvae., usually foraging in arboreal gleaner.

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02 · Where

Where to find it

Where does the Oriental Cuckoo live in Australia?

The Oriental Cuckoo is native to Australia, recorded across 27 of Australia’s bioregions, with a core range spanning west Russia and Kazakhstan through north-east Russia to Japan.

BreedingWest Russia and Kazakhstan through north-east Russia to Japan

Non-breedingSouth-east Asia, Philippines and Indonesian Arch. to north and east Australia, New Guinea and satellites, Bismarck Arch. and Solomon Is.

Distribution from BirdUp Australia community data

Legend

  • Breeding
  • Vagrant

7 regions recorded