hunting ground

noun3

1. •
   An area used for hunting.
2. •
   (figurative) A place in which individuals are able to obtain the items or information they seek.

   • Yes, it was my hunting ground, and it was solid happy. Course, my home wasn't exactly in Harlem […] — 1946
3. •
   (figurative) Synonym of stamping ground (“a place habitually frequented”).

   • In January 1901 he fought Jerry Driscoll back on his old hunting ground of Gateshead in the North East. — 2023