I managed ranches in S. Texas for close to a decade. I would recommend wearing them. Though rare, I have seen rattle snakes out and about on 40 degree mornings. Plus, shooting a javelina or pig with a trad bow, your more then likely to encounter some thick brush that you'll have to stomp through. Not only do the gaiters or boots protect against snakes, they also protect you from all of the thorns and cactus that make up that eco region. Good luck on your hunt, those javelinas are a blast to sneak up on!