An arctic finch (Plectrophenax, or Plectrophanes, nivalis) common, in winter, both in Europe and the United States, and often appearing in large flocks during snowstorms
{i} any of a number of birds that inhabit snowy regions (i.e. the junco and the snow bunting); person who travels to a warm climate during the winter (Slang); drug addict who sniffs cocaine (Slang)