snowbird

noun6

1. •
   A bird, Junco hyemalis, the dark-eyed junco.
2. •
   A person, usually one who is retired, who travels from a cold climate to a warmer one in the winter; one who overwinters elsewhere.
3. •
   A migratory bird seen primarily in the winter time.
4. •
   The snow bunting (Plectrophenax nivalis).
5. •
   (slang) Someone who uses cocaine illicitly.
6. •
   (US, slang) One who enlists in fall to desert after winter.