snowbird

noun

• 1North American informal a northerner who moves to a warmer Southern state in the winter: at the peak of the tourist season the hotel hosted an additional three hundred snowbirds and backpackers

• 2a widespread and variable junco (songbird) with grey or brown upper parts and a white belly.

  • Junco hyemalis, family Emberizidae (subfamily Emberizinae). Alternative name: dark-eyed junco
• the snow bunting.