winter quarters

Short definition from Wiktionary

Noun

1. 1
   A place where a wild animal goes to live or hibernate in the winter; hibernacle.
2. 2
   A place where a farmer, beekeeper, nurseryman, etc. moves their charges in the winter.
3. 3
   A more permanent location where a group that normally moves around, such as an army, circus, group of explorers, etc., takes time off to shelter for the winter.
4. 4
   A place where someone spends one or more winters.