Oriental cuckoo
A migratory cuckoo species found in East Asia. The name is onomatopoeic, mimicking its call.
In spring, Oriental cuckoos migrate to Japan.
山でツツドリの鳴き声を聞いた。
I heard the call of an Oriental cuckoo in the mountains.
Katakana spelling is common for bird names and is the usual written form for this species.
Kanji spelling is rare; the word is usually written in kana.
The name ツツドリ is onomatopoeic, derived from the bird's call which sounds like 'tsutsu'. The kanji 筒鳥 (literally 'tube bird') is an ateji spelling based on the sound.