ムラサキツバメ
Meanings
1
powdered oakblue (butterfly)
usually written using kana alone
Refers specifically to the butterfly species Narathura bazalus. In everyday contexts, the katakana name is used.
I found a powdered oakblue in the garden.
2
purple martin (bird)
Refers to the bird species Progne subis. This sense is less common and may be encountered in ornithological contexts.
The purple martin is a migratory bird found in North America.