English:  Oriental Cuckoo, Himalayan Cuckoo, Blyth’s Cuckoo
Russian: Глухая кукушка   
Mongolian: Ханамал хөхөө
German: Hopfkuckuck
French: Coucou oriental  
Japanese:  ツツドリ(Tsutsudori)

Body length: 30-34 cm.

Breeds in taiga and scrubby forest. Arrives at its European breeding grounds mid May-Jun; winters in SE Asia. Insectivorous. Nest parasite.

Identification: Very like Cuckoo, and usually hard to separate by appearance alone; close, lengthy observation always essential. Slightly smaller size with proportionately slightly heavier bill. Grey morph of both sexes is a shade darker on back and upperwings than Cuckoo (hard to judge in field). Dark barring on white belly basically the same as on Cuckoo, but some have slightly thicker and sparser bars. Undertail-coverts often rusty-buff and almost unmarked (some Cuckoos similar). Under primary-coverts often unmarked or with reduced barring (also shown by some Cuckoos, and is difficult to use in field!). Brown morph (only ♀; common)  always entirely and heavily barred, usually with broader black bars above than red-brown ones (normally the reverse on ♀ Cuckoo), especially on tail.