American redstart
A small migratory warbler (Setophaga ruticilla). Scientific or birdwatching term.
The American redstart is a small bird that breeds in North America.
Standard katakana spelling for this bird name.
Kanji spelling is rare; the word is usually written in kana.
Compound of 羽衣 (hagoromo, 'feather robe') + 虫喰 (mushikui, 'insect eater'), referring to a bird that catches insects and has plumage reminiscent of a celestial robe. The exact derivation is uncertain.