blue-and-white flycatcher
A migratory bird (Cyanoptila cyanomelana) found in East Asia. The name is usually written in katakana as オオルリ.
The blue-and-white flycatcher comes to Japan as a summer bird.
Katakana spelling is common for bird names and matches usual-kana usage.
Kanji spelling exists but is rarely used; the bird name is normally written in kana.
The name オオルリ literally means 'large lapis lazuli', referring to the bird's blue plumage. The exact derivation is uncertain.