No pigs there north east of Amarillo. That is all wheat ground, no cover. The only thing that they would be hunting in the fields at this time would be pheasants.
Pheasant season is over. From TPWD:
Open season: December 5, 2009-January 3, 2010. Bag Limit: three cocks. Possession limit: six cocks.
However, Quail is still in season:
tatewide: Open season: October 31, 2009-February 28, 2010. Daily bag limit: 15 Possession limit: 45