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
00
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
West Island
Jincheng
Hanoi