noun
Oriental cuckoo
A migratory cuckoo species found in East Asia. The name is onomatopoeic, mimicking its call.
春になるとツツドリが日本に渡ってくる。
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.
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.