The feral hogs that live in 18 of New Mexico's 33 counties are now in Otero County.
Officials tell the Alamogordo Daily News that the hogs destroy property and habitat and prey upon native species.
Feral pigs were first discovered in the Bootheel region of New Mexico in 1988.
They're believed to be remnants of a herd of escaped or released domestic pigs.
The eastern New Mexico hogs are believed to have been intentionally released for hunting reasons.
The state Legislature in 2009 passed a law making it illegal to import, hold, release or sell feral hogs or operate a commercial wild hog hunt.
It was passed in an effort to stop the growth of the wild pig population and the problems associated with hunting them as a sport.
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Information from: Alamogordo Daily News, http://www.alamogordonews.com
Copyright 2012 The Associated Press.