Siberian rubythroat
A small migratory bird with a distinctive red throat, found in Siberia and parts of East Asia.
The Siberian rubythroat migrates to Japan in spring.
Usually written in katakana; the kanji form 野駒 is rare.
Rare kanji spelling; the katakana form ノゴマ is standard.
The name ノゴマ is of uncertain origin; the kanji 野駒 (field + foal) is likely ateji.