Are some people reliant on hunting for food?
Not everyone actually gets an animal and a large portion of those people are out there to just get drunk and camp...but there are many who do rely on the additional meat to get through the year. Especially in areas like this where people tend to shy away from the govt. and their subsidies.
(hunt exclusively) for food?
or
hunt (exclusively for food)?
I.e. do they get all of their food from hunting? (what GP asked) Or do they eat all that they hunt?
just hunting: http://www.andymboyle.com/portfolio/felons-hunting-with-guns...
if you're a felon, ironically, often times this need is compounded because you might have limited job opportunities due to your status as a felon.