noun
rufous hawk-cuckoo; northern hawk-cuckoo
A bird species (Hierococcyx hyperythrus). Related to ジュウイチ (lesser cuckoo).
See also: ジュウイチ
慈悲心鳥は夏鳥として日本に渡来する。
The rufous hawk-cuckoo migrates to Japan as a summer bird.
Standard kanji spelling for this bird name.
Katakana spelling, common in biological contexts or when the kanji are obscure.
ジュウイチ is the lesser cuckoo (Cuculus poliocephalus), a different species. 慈悲心鳥 is larger and has a different call.
The name 慈悲心鳥 literally means 'compassion-heart bird', possibly from the sound of its call being interpreted as '慈悲心' (compassion). The exact origin is uncertain.