2009-5-25 Collared Peccary aka Javelina or Peccary (Pecari tajacu or Tayassu tajacu) is a peccary, not a pig. Seen in Texas.

Arizona Game and Fish says:
Though some people think javelina are a type of wild pig, they are actually members of the peccary family, a group of hoofed mammals originating from South America. Javelina are common in much of central and southern Arizona, including the outskirts of the Phoenix area, most of Tucson, and occasionally as far north as Flagstaff. Javelina form herds of two to more than 20 animals and rely on each other to defend territory, protect against predators, regulate temperature and interact socially. They use washes and areas with dense vegetation as travel corridors. Javelina are most active at night, but they may be active during the day when it is cold.

https://www.azgfd.com/wildlife/livingwith/javelina

The southwestern US is its northernmost range in the Americas.
https://en.wikipedia.org/wiki/Collared_peccary