Lidth's jay
A bird species (Garrulus lidthi) native to the Ryukyu Islands; the name is a specific zoological term.
The Lidth's jay is an endemic species of Amami Ōshima.
Katakana spelling is standard for this bird name; usually written in kana.
Kanji spelling is rare and mainly found in older or specialized texts; the katakana form is preferred.
The name combines 瑠璃 (lapis lazuli, referring to the blue color) and 懸巣 (an old name for the Eurasian jay). The exact derivation is uncertain, but it describes the bird's appearance and its relation to jays.