Oriental Cuckoo
- kingdom: Animalia
- phylum: Chordata
- class: Aves
- order: Cuculiformes
- family: Cuculidae
- genus: Cuculus
- species: Cuculus optatus
- Bolwarra
- Gladesville
- Hunters Hill
- Lorn
- Maitland
- North Ryde
- Quakers Hill
New South Wales- Darwin
- Fannie Bay
- Larrakeyah
- Ludmilla
- Nhulunbuy
- Nightcliff
- Parap
- Stuart Park
Northern Territory- Broome
Western Australia
Australia- Beidaihehaibin
Hebei- Boli
Heilongjiang- Yuanjiazhuang
Shaanxi
China- Cocos (Keeling) Islands
- Tomohon
North Sulawesi- Makassar
South Sulawesi- Bogor
- Lembang
- Pelabuhanratu
West Java- Bukittinggi
West Sumatra
Indonesia- Misawa
Aomori- Funabashi
Chiba- Fukushima-shi
Fukushima- Nagasaki-shi
Nagasaki
Japan- Seoul
Seoul
Korea- Colonia
Yap
Micronesia, Federated States Of- Telmin Suma
Dzabkhan- Dalandzadgad
Ömnögovĭ
Mongolia- Mandalay
Mandalay
Myanmar- Kingston
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Norfolk Island- Ngetkib
Airai- Koror State
- Koror Town
Koror- Ngerkeai
Ngiwal
Palau- Kiunga
Western Province
Papua New Guinea- Los Baños
Calabarzon- Batuan
- Bilar
- Nueva Vida Sur
Central Visayas- Quezon City
Metro Manila
Philippines- Ust’-Kan
Altai- Nizhneangarsk
Buryatiya Republic- Cherskiy
Chukot- Listvyanka
Irkutsk Oblast- Slavyanka
Primorskiy (Maritime) Kray- Aniva
- Yuzhno-Sakhalinsk
Sakhalin Oblast- Shuvakish
Sverdlovsk
Russian Federation