Who is my feathery visitor?

This lady keeps prowling my yard for the last week, as far as I could find online it appears to be a gamefowl rather than your standard egg-laying chicken. I live somewhat rural and I'd say 1/3 of my neighbors keep chickens, but is there a reason one might just abandon their flock and go rogue? I assume my yard is just prime for snacks at this point, but no clue why she's doing her solo trips.